CVE-2012-2336
MediumExploitedPublic exploitphp: incomplete CVE-2012-1823 fix - missing filtering of -T and -h
Published May 3, 2012 · Updated Aug 6, 2024
Key Facts
Patch immediately- CVE-2012-2336 is a medium-severity vulnerability (CVSS 5.0 v2) affecting PHP, php53-bcmath (oracle), php53-cli (oracle) and 22 more products.
- It is exploited in the wild, listed in Industry KEV feed since Jan 15, 2018. Public exploit code is available.
- EPSS estimates a 50% probability of exploitation in the next 30 days.
- Fixed versions are available, including apache2-mod_php5 5.6.28-1.1, apache2-mod_php7 7.0.14-1.4, PHP 0:5.1.6-39.el5_8.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (30-day exploit likelihood)
50%
Higher than 98.9% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2012-2336 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, 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 cause a denial of service (resource consumption) by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'T' case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 15, 2018 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
304 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PHPPHP | 1.0, 2.0, 2.0b10, 3.0, 3.0.1, 3.0.10, 3.0.11, 3.0.12 | 5.3.12 |
| php53-bcmathoracle | See advisory | 5.3.3-13.el5_8 |
| php53-clioracle | See advisory | 5.3.3-13.el5_8 |
| php53-commonoracle | See advisory | 5.3.3-13.el5_8 |
| php53-dbaoracle | See advisory | 5.3.3-13.el5_8 |
Patched Releases
apache2-mod_php5
5.6.28-1.1
apache2-mod_php7
7.0.14-1.4
PHP
0:5.1.6-39.el5_8, 0:5.3.3-14.el6_3, 5.1.6-39.el5_8, 5.3.3-14.el6_3, 5.3.12
php-bcmath
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-cli
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-common
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-dba
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-devel
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-embedded
5.3.3-14.el6_3
php-enchant
5.3.3-14.el6_3
php-gd
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-imap
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-intl
5.3.3-14.el6_3
php-ldap
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-mbstring
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-mysql
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-ncurses
5.1.6-39.el5_8
php-odbc
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-pdo
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-pgsql
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-process
5.3.3-14.el6_3
php-pspell
5.3.3-14.el6_3
php-recode
5.3.3-14.el6_3
php-snmp
5.1.6-39.el5_8, 5.3.3-14.el6_3
php-soap
5.1.6-39.el5_8, 5.3.3-14.el6_3
Timeline
Publicly disclosed
May 3, 2012
Added to Industry KEV feed
Jan 15, 2018
Last updated
Aug 6, 2024
Weakness Type
- CWE-20 Improper Input Validation
- CWE-228 Improper Handling of Syntactically Invalid Structure
- CWE-400 Uncontrolled Resource Consumption
- CWE-791 Incomplete Filtering of Special Elements
References
- advisoryRHSA-2012:1045
- advisoryRHSA-2012:1046
- advisoryRHSA-2012:1047
- advisoryhttps://bugs.php.net/bug.php?id=61910
- advisory49014
FAQ
Common Questions.
sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, 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 cause a denial of service (resource consumption) by placing command-line options in the query s…
Affected: PHP versions 1.0, 2.0, 2.0b10, 3.0, 3.0.1, 3.0.10, 3.0.11, 3.0.12; php53-bcmath (oracle); php53-cli (oracle), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jan 15, 2018.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including apache2-mod_php5 5.6.28-1.1, apache2-mod_php7 7.0.14-1.4, PHP 0:5.1.6-39.el5_8.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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