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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 5.01% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- php/php
- Source
- secalert@redhat.com
References
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://securityreason.com/securityalert/8525
- http://svn.php.net/viewvc/?view=revision&revision=317183Patch
- http://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/Exploit
- http://www.securityfocus.com/archive/1/519770/30/0/threaded
- https://bugs.php.net/bug.php?id=55475Exploit
- https://bugzilla.redhat.com/show_bug.cgi?id=741020Patch
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://securityreason.com/securityalert/8525
- http://svn.php.net/viewvc/?view=revision&revision=317183Patch
- http://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/Exploit
- http://www.securityfocus.com/archive/1/519770/30/0/threaded
- https://bugs.php.net/bug.php?id=55475Exploit
- https://bugzilla.redhat.com/show_bug.cgi?id=741020Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.