mod_proxy SSRF
Priority CRITICAL 98Exploited in the wildCWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
Why it matters now
Exploitation Active In CISA KEV since 2021-12-01CISA due date 2021-12-15Known ransomware use
EPSS 0.99999 99th percentileScored 2026-11-07
Fix Fixed Red Hat: 7 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache HTTP Server | Apache HTTP Server 2.4 – 2.4.48 | — | No fix listed | CNA |
- Apache HTTP Server VendorApache Affected Apache HTTP Server 2.4 – 2.4.48 Fixed in — No fix listed CNA
CPE configurations NVD · 86
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:resf:rocky_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Resf |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
- cpe:2.3:o:resf:rocky_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Resf
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
Show 76 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0_s390x:*:*:*:*:*:*:* | 7.0_s390x | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* | 7.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:* | 8.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
| cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | up to 2.4.48 | Vulnerable | Apache |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Broadcom |
| cpe:2.3:o:f5:f5os:*:*:*:*:*:*:*:* | 1.1.0 – 1.1.4; 1.2.0 – 1.2.1 | Vulnerable | F5 |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* | 12.4.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* | 12.2.1.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* | 12.2.1.4.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* | 17.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* | 17.2 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* | 17.3 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:secure_global_desktop:5.6:*:*:*:*:*:*:* | 5.6 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Oracle |
| cpe:2.3:a:siemens:ruggedcom_nms:*:*:*:*:*:*:*:* | all versions | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:* | before 1.0.3 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:* | before 3.1 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:*:*:*:*:*:*:* | 3.2 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:* | 14.0 | Vulnerable | Siemens |
| cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:* | up to 5.19.1 | Vulnerable | Tenable |
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0_s390x:*:*:*:*:*:*:* Versions 7.0_s390x Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
- cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions up to 2.4.48 Vulnerable ·Apache
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Broadcom
- cpe:2.3:o:f5:f5os:*:*:*:*:*:*:*:* Versions 1.1.0 – 1.1.4; 1.2.0 – 1.2.1 Vulnerable ·F5
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* Versions 12.4.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* Versions 12.2.1.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* Versions 17.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* Versions 17.2 Vulnerable ·Oracle
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* Versions 17.3 Vulnerable ·Oracle
- cpe:2.3:a:oracle:secure_global_desktop:5.6:*:*:*:*:*:*:* Versions 5.6 Vulnerable ·Oracle
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Oracle
- cpe:2.3:a:siemens:ruggedcom_nms:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:* Versions before 1.0.3 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:* Versions before 3.1 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:* Versions 14.0 Vulnerable ·Siemens
- cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:* Versions up to 5.19.1 Vulnerable ·Tenable
Remediation
Red Hat 7 advisories
- RHSA-2021:3856 Released 2021-10-14 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Client Optional (v. 7) httpd-2.4.6-97.el7_9.1, httpd-devel-2.4.6-97.el7_9.1, httpd-manual-2.4.6-97.el7_9.1 +5
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd-2.4.6-97.el7_9.1, httpd-devel-2.4.6-97.el7_9.1, httpd-manual-2.4.6-97.el7_9.1 +5
- Red Hat Enterprise Linux Server (v. 7) httpd-2.4.6-97.el7_9.1, httpd-devel-2.4.6-97.el7_9.1, httpd-manual-2.4.6-97.el7_9.1 +3
- Red Hat Enterprise Linux Server AUS (v. 7.2) httpd-2.4.6-40.el7_2.7, httpd-devel-2.4.6-40.el7_2.7, httpd-manual-2.4.6-40.el7_2.7 +2
- Red Hat Enterprise Linux Server AUS (v. 7.3) httpd-2.4.6-45.el7_3.6, httpd-devel-2.4.6-45.el7_3.6, httpd-manual-2.4.6-45.el7_3.6 +2
- Red Hat Enterprise Linux Server AUS (v. 7.4) httpd-2.4.6-67.el7_4.7, httpd-devel-2.4.6-67.el7_4.7, httpd-manual-2.4.6-67.el7_4.7 +3
- Red Hat Enterprise Linux Server AUS (v. 7.6) httpd-2.4.6-89.el7_6.2, httpd-devel-2.4.6-89.el7_6.2, httpd-manual-2.4.6-89.el7_6.2 +3
- Red Hat Enterprise Linux Server AUS (v. 7.7) httpd-2.4.6-90.el7_7.1, httpd-devel-2.4.6-90.el7_7.1, httpd-manual-2.4.6-90.el7_7.1 +3
- Red Hat Enterprise Linux Server E4S (v. 7.6) httpd-2.4.6-89.el7_6.2, httpd-devel-2.4.6-89.el7_6.2, httpd-manual-2.4.6-89.el7_6.2 +3
- Red Hat Enterprise Linux Server E4S (v. 7.7) httpd-2.4.6-90.el7_7.1, httpd-devel-2.4.6-90.el7_7.1, httpd-manual-2.4.6-90.el7_7.1 +3
- Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap-2.4.6-97.el7_9.1, mod_proxy_html-1:2.4.6-97.el7_9.1
- Red Hat Enterprise Linux Server Optional AUS (v. 7.2) mod_ldap-2.4.6-40.el7_2.7, mod_proxy_html-1:2.4.6-40.el7_2.7, mod_session-2.4.6-40.el7_2.7
- Red Hat Enterprise Linux Server Optional AUS (v. 7.3) mod_ldap-2.4.6-45.el7_3.6, mod_proxy_html-1:2.4.6-45.el7_3.6, mod_session-2.4.6-45.el7_3.6
- Red Hat Enterprise Linux Server Optional AUS (v. 7.4) mod_ldap-2.4.6-67.el7_4.7, mod_proxy_html-1:2.4.6-67.el7_4.7
- Red Hat Enterprise Linux Server Optional AUS (v. 7.6) mod_ldap-2.4.6-89.el7_6.2, mod_proxy_html-1:2.4.6-89.el7_6.2
- Red Hat Enterprise Linux Server Optional AUS (v. 7.7) mod_ldap-2.4.6-90.el7_7.1, mod_proxy_html-1:2.4.6-90.el7_7.1
- Red Hat Enterprise Linux Server Optional E4S (v. 7.6) mod_ldap-2.4.6-89.el7_6.2, mod_proxy_html-1:2.4.6-89.el7_6.2
- Red Hat Enterprise Linux Server Optional E4S (v. 7.7) mod_ldap-2.4.6-90.el7_7.1, mod_proxy_html-1:2.4.6-90.el7_7.1
- Red Hat Enterprise Linux Server Optional TUS (v. 7.6) mod_ldap-2.4.6-89.el7_6.2, mod_proxy_html-1:2.4.6-89.el7_6.2
- Red Hat Enterprise Linux Server Optional TUS (v. 7.7) mod_ldap-2.4.6-90.el7_7.1, mod_proxy_html-1:2.4.6-90.el7_7.1
- Red Hat Enterprise Linux Server TUS (v. 7.6) httpd-2.4.6-89.el7_6.2, httpd-devel-2.4.6-89.el7_6.2, httpd-manual-2.4.6-89.el7_6.2 +3
- Red Hat Enterprise Linux Server TUS (v. 7.7) httpd-2.4.6-90.el7_7.1, httpd-devel-2.4.6-90.el7_7.1, httpd-manual-2.4.6-90.el7_7.1 +3
- Red Hat Enterprise Linux Workstation (v. 7) httpd-2.4.6-97.el7_9.1, httpd-devel-2.4.6-97.el7_9.1, httpd-manual-2.4.6-97.el7_9.1 +3
- Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap-2.4.6-97.el7_9.1, mod_proxy_html-1:2.4.6-97.el7_9.1
- RHSA-2021:3836 Released 2021-10-13 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) httpd-2.4.37-21.module+el8.2.0+12904+53ee7aba.1.aarch64::httpd:2.4, httpd-2.4.37-21.module+el8.2.0+12904+53ee7aba.1.ppc64le::httpd:2.4, httpd-2.4.37-21.module+el8.2.0+12904+53ee7aba.1.s390x::httpd:2.4 +38
- RHSA-2021:3837 Released 2021-10-13 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) httpd-2.4.37-16.module+el8.1.0+12900+7e6e5641.1.aarch64::httpd:2.4, httpd-2.4.37-16.module+el8.1.0+12900+7e6e5641.1.ppc64le::httpd:2.4, httpd-2.4.37-16.module+el8.1.0+12900+7e6e5641.1.s390x::httpd:2.4 +37
Show 4 more Red Hat advisories
- RHSA-2021:3816 Released 2021-10-12 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-39.module+el8.4.0+12865+a7065a39.1.aarch64::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+12865+a7065a39.1.ppc64le::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+12865+a7065a39.1.s390x::httpd:2.4 +38
- RHSA-2021:3754 Released 2021-10-11 · Red Hat rating Importanthttpd24-httpd security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-httpd-2.4.34-22.el7.1, httpd24-httpd-devel-2.4.34-22.el7.1, httpd24-httpd-manual-2.4.34-22.el7.1 +5
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-httpd-2.4.34-22.el7.1, httpd24-httpd-devel-2.4.34-22.el7.1, httpd24-httpd-manual-2.4.34-22.el7.1 +5
- RHSA-2021:3746 Released 2021-10-07 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 SP9 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd-2.4.37-76.jbcs.el7, jbcs-httpd24-httpd-devel-2.4.37-76.jbcs.el7, jbcs-httpd24-httpd-manual-2.4.37-76.jbcs.el7 +13
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-httpd-2.4.37-76.el8jbcs, jbcs-httpd24-httpd-devel-2.4.37-76.el8jbcs, jbcs-httpd24-httpd-manual-2.4.37-76.el8jbcs +13
- RHSA-2021:3745 Released 2021-10-07 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 SP9 security update
- Red Hat JBoss Core Services
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Apache HTTP Server — DSA-4982
4 records Highest priority Priority CRITICAL 1 CRITICAL, 3 HIGH
Other records, highest priority first
- TI-2021-16656 ap_escape_quotes buffer overflowPriority HIGH 69
- TI-2021-13795 NULL pointer dereference in httpd corePriority HIGH 69
- TI-2021-14579 mod_proxy_uwsgi out of bound readPriority HIGH 68
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:3816 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.1) | Fixed | RHSA-2021:3837 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2021:3836 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server AUS (v. 7.2) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server AUS (v. 7.3) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server AUS (v. 7.4) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server AUS (v. 7.6) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server AUS (v. 7.7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server E4S (v. 7.6) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server E4S (v. 7.7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.2) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.3) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.4) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.6) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional E4S (v. 7.6) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional E4S (v. 7.7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional TUS (v. 7.6) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server Optional TUS (v. 7.7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server TUS (v. 7.6) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Server TUS (v. 7.7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:3856 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2021:3856 |
| Red Hat JBoss Core Services | Fixed | RHSA-2021:3745 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2021:3746 |
| Red Hat JBoss Core Services on RHEL 8 | Fixed | RHSA-2021:3746 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:3754 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:3754 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 9
- Red Hat JBoss Enterprise Application Platform 6
Timeline
- 2021-12-01 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2021-40438
- 2026-10-03 Alias added: GHSA-rwxq-58vm-3v2j
References
Patch 2
Advisory 10
- https://httpd.apache.org/security/vulnerabilities_24.html
- FEDORA-2021-dce7e7738e
- FEDORA-2021-e3f6dd670d
- [debian-lts-announce] 20211002 [SECURITY] [DLA 2776-1] apache2 security update
- DSA-4982
- 20211124 Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021
- https://www.tenable.com/security/tns-2021-17
- https://security.netapp.com/advisory/ntap-20211008-0004/
- https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
- GLSA-202208-20
Other 7
- [httpd-users] 20210923 [users@httpd] 2.4.49 security fixes: more info
- [httpd-users] 20210923 Re: [users@httpd] 2.4.49 security fixes: more info
- [httpd-users] 20210923 [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more info
- [httpd-users] 20210923 Re: [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more info
- [httpd-bugs] 20211008 [Bug 65616] CVE-2021-36160 regression
- [httpd-users] 20211019 [users@httpd] Regarding CVE-2021-40438
- [httpd-users] 20211019 Re: [users@httpd] Regarding CVE-2021-40438
More Apache Http Server vulnerabilities
- TI-2021-18535 Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) KEVCVSS 3.1CRITICAL 9.8
- TI-2021-18417 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 KEVCVSS 3.1CRITICAL 9.8
- TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
- TI-2019-00184 Use after free in Apache HTTP Server KEVCVSS 3.1HIGH 7.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
- TI-2023-10967 Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-40438 · CVE Program
- CVE-2021-40438 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-rwxq-58vm-3v2j · GitHub Advisory Database · CC BY 4.0
- CVE-2021-40438 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences