sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI…
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-77.
Summary
sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case.
Why it matters now
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | before 5.3.12; 5.4.0 to before 5.4.2 | Vulnerable | PHP |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* | 40 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Debian |
| cpe:2.3:o:hp:hp-ux:b.11.23:*:*:*:*:*:*:* | b.11.23 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:hp:hp-ux:b.11.31:*:*:*:*:*:*:* | b.11.31 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* | 11.4 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:12.1:*:*:*:*:*:*:* | 12.1 | Vulnerable | openSUSE |
| cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:-:*:*:* | 10 sp4 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:-:*:* | 11 sp2 | Vulnerable | SUSE |
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions before 5.3.12; 5.4.0 to before 5.4.2 Vulnerable ·PHP
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Debian
- cpe:2.3:o:hp:hp-ux:b.11.23:*:*:*:*:*:*:* Versions b.11.23 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:hp:hp-ux:b.11.31:*:*:*:*:*:*:* Versions b.11.31 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* Versions 11.4 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:12.1:*:*:*:*:*:*:* Versions 12.1 Vulnerable ·openSUSE
- cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:-:*:*:* Versions 10 sp4 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:-:*:* Versions 11 sp2 Vulnerable ·SUSE
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:* | 11 sp2 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp4:*:*:*:*:*:* | 10 sp4 | Vulnerable | SUSE |
| cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp2:*:*:*:*:*:* | 11 sp2 | Vulnerable | SUSE |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | 10.6.8 to before 10.7.5; 10.8.0 to before 10.8.2 | Vulnerable | Apple |
| cpe:2.3:a:redhat:application_stack:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:gluster_storage_server_for_on-premise:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:storage:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:storage_for_public_cloud:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:5.6:*:*:*:*:*:*:* | 5.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:6.1:*:*:*:*:*:*:* | 6.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_eus:6.2:*:*:*:*:*:*:* | 6.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:5.3:*:*:*:*:*:*:* | 5.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:5.6:*:*:*:*:*:*:* | 5.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:* Versions 11 sp2 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp4:*:*:*:*:*:* Versions 10 sp4 Vulnerable ·SUSE
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp2:*:*:*:*:*:* Versions 11 sp2 Vulnerable ·SUSE
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.6.8 to before 10.7.5; 10.8.0 to before 10.8.2 Vulnerable ·Apple
- cpe:2.3:a:redhat:application_stack:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:gluster_storage_server_for_on-premise:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:storage:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:storage_for_public_cloud:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:5.6:*:*:*:*:*:*:* Versions 5.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_eus:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:5.6:*:*:*:*:*:*:* Versions 5.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
Red Hat 5 advisories
- RHSA-2012:0570 Released 2012-05-11 · Red Hat rating Criticalphp security update
- Red Hat Application Stack v2 for Enterprise Linux (v.5) php-5.2.10-2.el5s2, php-5.2.10-2.el5s2.i386, php-bcmath-5.2.10-2.el5s2 +35
- RHSA-2012:0568 Released 2012-05-10 · Red Hat rating Criticalphp security update
- Red Hat Enterprise Linux EUS (v. 5.6 server) php-5.1.6-27.el5_6.4, php-5.1.6-27.el5_6.4.i386, php-5.1.6-27.el5_6.4.ia64 +47
- Red Hat Enterprise Linux Long Life (v. 5.3 server) php-5.1.6-23.3.el5_3, php-5.1.6-23.3.el5_3.i386, php-5.1.6-23.3.el5_3.ia64 +47
- Red Hat Enterprise Linux Server EUS (v. 6.0) php-5.3.2-6.el6_0.2, php-cli-5.3.2-6.el6_0.2, php-common-5.3.2-6.el6_0.2 +9
- Red Hat Enterprise Linux Server EUS (v. 6.1) php-5.3.3-3.el6_1.4, php-cli-5.3.3-3.el6_1.4, php-common-5.3.3-3.el6_1.4 +9
- Red Hat Enterprise Linux Server Optional EUS (v. 6.0) php-5.3.2-6.el6_0.2, php-bcmath-5.3.2-6.el6_0.2, php-dba-5.3.2-6.el6_0.2 +12
- Red Hat Enterprise Linux Server Optional EUS (v. 6.1) php-5.3.3-3.el6_1.4, php-bcmath-5.3.3-3.el6_1.4, php-dba-5.3.3-3.el6_1.4 +12
- RHSA-2012:0569 Released 2012-05-10 · Red Hat rating Criticalphp53 security update
- Red Hat Enterprise Linux EUS (v. 5.6 server) php53-5.3.3-1.el5_6.2, php53-5.3.3-1.el5_6.2.i386, php53-5.3.3-1.el5_6.2.ia64 +47
Show 2 more Red Hat advisories
- RHSA-2012:0546 Released 2012-05-07 · Red Hat rating Criticalphp security update
- RHEL Desktop Workstation (v. 5 client) php-5.1.6-34.el5_8, php-5.1.6-34.el5_8.i386, php-bcmath-5.1.6-34.el5_8 +35
- Red Hat Enterprise Linux (v. 5 server) php-5.1.6-34.el5_8, php-5.1.6-34.el5_8.i386, php-5.1.6-34.el5_8.ia64 +47
- Red Hat Enterprise Linux Desktop Optional (v. 6) php-5.3.3-3.el6_2.8, php-bcmath-5.3.3-3.el6_2.8, php-cli-5.3.3-3.el6_2.8 +23
- Red Hat Enterprise Linux HPC Node (v. 6) php-5.3.3-3.el6_2.8, php-cli-5.3.3-3.el6_2.8, php-common-5.3.3-3.el6_2.8
- Red Hat Enterprise Linux HPC Node Optional (v. 6) php-5.3.3-3.el6_2.8, php-bcmath-5.3.3-3.el6_2.8, php-dba-5.3.3-3.el6_2.8 +21
- Red Hat Enterprise Linux Server (v. 6) php-5.3.3-3.el6_2.8, php-cli-5.3.3-3.el6_2.8, php-common-5.3.3-3.el6_2.8 +9
- Red Hat Enterprise Linux Server Optional (v. 6) php-5.3.3-3.el6_2.8, php-bcmath-5.3.3-3.el6_2.8, php-dba-5.3.3-3.el6_2.8 +12
- Red Hat Enterprise Linux Workstation (v. 6) php-5.3.3-3.el6_2.8, php-cli-5.3.3-3.el6_2.8, php-common-5.3.3-3.el6_2.8 +9
- Red Hat Enterprise Linux Workstation Optional (v. 6) php-5.3.3-3.el6_2.8, php-bcmath-5.3.3-3.el6_2.8, php-dba-5.3.3-3.el6_2.8 +12
- RHSA-2012:0547 Released 2012-05-07 · Red Hat rating Criticalphp53 security update
- RHEL Desktop Workstation (v. 5 client) php53-5.3.3-7.el5_8, php53-5.3.3-7.el5_8.i386, php53-bcmath-5.3.3-7.el5_8 +39
- Red Hat Enterprise Linux (v. 5 server) php53-5.3.3-7.el5_8, php53-5.3.3-7.el5_8.i386, php53-5.3.3-7.el5_8.ia64 +47
Vendor assessments
Red Hat
Red Hat rating: Critical. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHEL Desktop Workstation (v. 5 client) | Fixed | RHSA-2012:0546, RHSA-2012:0547 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2012:0546, RHSA-2012:0547 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2012:0546 |
| Red Hat Enterprise Linux EUS (v. 5.6 server) | Fixed | RHSA-2012:0568, RHSA-2012:0569 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:0546 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2012:0546 |
| Red Hat Enterprise Linux Long Life (v. 5.3 server) | Fixed | RHSA-2012:0568 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:0546 |
| Red Hat Enterprise Linux Server EUS (v. 6.0) | Fixed | RHSA-2012:0568 |
| Red Hat Enterprise Linux Server EUS (v. 6.1) | Fixed | RHSA-2012:0568 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2012:0546 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.0) | Fixed | RHSA-2012:0568 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.1) | Fixed | RHSA-2012:0568 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:0546 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2012:0546 |
Not affected: 1 product
- Red Hat Enterprise Linux 4
Timeline
- 2022-03-25 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2012-1823
- 2026-10-03 Alias added: GHSA-3p37-hv77-x3rp
References
Exploit 4
Patch 1
Advisory 17
More Php vulnerabilities
- TI-2024-04260 Argument Injection in PHP-CGI KEVCVSS 3.1CRITICAL 9.8
- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2026-78794 PHP remote code execution via stale global state KEVCVSS 4.0CRITICAL 9.2
- TI-2026-78793 Out-of-memory handling flaw in PHP allows remote code execution KEVCVSS 4.0CRITICAL 9.2
- TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
- TI-2018-05487 In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2012-1823 · CVE Program
- CVE-2012-1823 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-3p37-hv77-x3rp · GitHub Advisory Database · CC BY 4.0
- CVE-2012-1823 · 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