RCE in PHP
CVE-2011-3379
The is_a function in PHP 5.3.7 and 5.3.8 triggers a call to the __autoload function, which makes it easier for remote attackers to execute arbitrary code by providing a crafted URL and leveraging potentially unsafe behavior in certain PEAR packages and custom autoloaders.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.050 (91.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.050 · newest: 0.050 · change: 0.000
Affected products
- PHP — versions 5.3.7, 5.3.8
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch)
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp (vendor-advisory)
- svn.php.net/viewvc/ (Patch)
- bugs.php.net/bug.php (Exploit)
- www.securityfocus.com/archive/1/519770/30/0/threaded (mailing-list)
- securityreason.com/securityalert/8525 (third-party-advisory)
- www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/ (Exploit)