Apache HTTP Server may use exploitable/malicious backend application output to run local handlers via internal redirect
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-829.
Summary
Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 | 2.4.0 – 2.4.59 | — | No fix listed | CNA |
- Apache HTTP Server VendorApache Affected 2.4.0 – 2.4.59 Fixed in — No fix listed CNA
Remediation
Red Hat 12 advisories
- RHSA-2024:7101 Released 2024-09-25 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server (v. 7 ELS) httpd-2.4.6-99.el7_9.3, httpd-devel-2.4.6-99.el7_9.3, httpd-manual-2.4.6-99.el7_9.3 +3
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) mod_ldap-2.4.6-99.el7_9.3, mod_proxy_html-1:2.4.6-99.el7_9.3
- RHSA-2024:6584 Released 2024-09-11 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Server AUS (v. 7.7) httpd-2.4.6-90.el7_7.5, httpd-devel-2.4.6-90.el7_7.5, httpd-manual-2.4.6-90.el7_7.5 +3
- Red Hat Enterprise Linux Server Optional AUS (v. 7.7) mod_ldap-2.4.6-90.el7_7.5, mod_proxy_html-1:2.4.6-90.el7_7.5
- RHSA-2024:6583 Released 2024-09-11 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) httpd-2.4.37-21.module+el8.2.0+22234+cf633926.9.src::httpd:2.4, httpd-2.4.37-21.module+el8.2.0+22234+cf633926.9.x86_64::httpd:2.4, httpd-devel-2.4.37-21.module+el8.2.0+22234+cf633926.9.x86_64::httpd:2.4 +11
Show 9 more Red Hat advisories
- RHSA-2024:6468 Released 2024-09-09 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.src::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.x86_64::httpd:2.4, httpd-devel-2.4.37-47.module+el8.6.0+22231+3e699de3.10.x86_64::httpd:2.4 +11
- Red Hat Enterprise Linux AppStream E4S (v.8.6) httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.aarch64::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.ppc64le::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.s390x::httpd:2.4 +38
- Red Hat Enterprise Linux AppStream TUS (v.8.6) httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.src::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22231+3e699de3.10.x86_64::httpd:2.4, httpd-devel-2.4.37-47.module+el8.6.0+22231+3e699de3.10.x86_64::httpd:2.4 +11
- RHSA-2024:6467 Released 2024-09-09 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.src::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.x86_64::httpd:2.4, httpd-devel-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.x86_64::httpd:2.4 +11
- Red Hat Enterprise Linux AppStream E4S (v.8.4) httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.ppc64le::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.src::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.x86_64::httpd:2.4 +20
- Red Hat Enterprise Linux AppStream TUS (v.8.4) httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.src::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.x86_64::httpd:2.4, httpd-devel-2.4.37-39.module+el8.4.0+22233+7f67fd1f.9.x86_64::httpd:2.4 +11
- RHSA-2024:6136 Released 2024-09-03 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) httpd-2.4.37-56.module+el8.8.0+22230+712d65df.9.aarch64::httpd:2.4, httpd-2.4.37-56.module+el8.8.0+22230+712d65df.9.ppc64le::httpd:2.4, httpd-2.4.37-56.module+el8.8.0+22230+712d65df.9.s390x::httpd:2.4 +38
- RHSA-2024:5812 Released 2024-08-26 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) httpd-2.4.53-11.el9_2.11, httpd-core-2.4.53-11.el9_2.11, httpd-devel-2.4.53-11.el9_2.11 +8
- RHSA-2024:5832 Released 2024-08-26 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) httpd-2.4.51-7.el9_0.8, httpd-devel-2.4.51-7.el9_0.8, httpd-filesystem-2.4.51-7.el9_0.8 +7
- RHSA-2024:5239 Released 2024-08-13 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.57 SP5 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd-2.4.57-13.el7jbcs, jbcs-httpd24-httpd-devel-2.4.57-13.el7jbcs, jbcs-httpd24-httpd-manual-2.4.57-13.el7jbcs +12
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-httpd-2.4.57-13.el8jbcs, jbcs-httpd24-httpd-devel-2.4.57-13.el8jbcs, jbcs-httpd24-httpd-manual-2.4.57-13.el8jbcs +12
- RHSA-2024:5240 Released 2024-08-13 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.57 SP5 security update
- Red Hat JBoss Core Services
- RHSA-2024:5193 Released 2024-08-12 · Red Hat rating Importanthttpd:2.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-65.module+el8.10.0+22196+d82931da.2.aarch64::httpd:2.4, httpd-2.4.37-65.module+el8.10.0+22196+d82931da.2.ppc64le::httpd:2.4, httpd-2.4.37-65.module+el8.10.0+22196+d82931da.2.s390x::httpd:2.4 +38
- RHSA-2024:5138 Released 2024-08-08 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux AppStream (v. 9) httpd-2.4.57-11.el9_4.1, httpd-core-2.4.57-11.el9_4.1, httpd-devel-2.4.57-11.el9_4.1 +8
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-2024:5193 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:5138 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2024:6583 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2024:6467 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2024:6468 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2024:6467 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2024:6468 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2024:5832 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:6136 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:5812 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2024:6467 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2024:6468 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2024:7101 |
| Red Hat Enterprise Linux Server AUS (v. 7.7) | Fixed | RHSA-2024:6584 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2024:7101 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.7) | Fixed | RHSA-2024:6584 |
| Red Hat JBoss Core Services | Fixed | RHSA-2024:5240 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2024:5239 |
| Red Hat JBoss Core Services on RHEL 8 | Fixed | RHSA-2024:5239 |
Not affected: 2 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2024-38476
- 2026-10-03 Alias added: GHSA-fpq9-w5cw-5hf8
- 2026-10-09 Fix available: RHSA-2024:5240 · Red Hat
- 2026-11-05 Fix available: Red Hat JBoss Core Services · Red Hat
References
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-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
- 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
Sources
- CVE-2024-38476 · CVE Program
- CVE-2024-38476 · NVD
- FIRST EPSS
- GHSA-fpq9-w5cw-5hf8 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-38476 · 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