Vulnerability CVE-2011-3379


Published: 2011-11-03   Modified: 2012-02-13

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
PHP 5.3.7+ issue is_a function
Cipriano Groenen...
11.11.2011

Type:

CWE-94

(Improper Control of Generation of Code ('Code Injection'))

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
PHP -> PHP 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=741020
http://svn.php.net/viewvc/?view=revision&revision=317183
https://bugs.php.net/bug.php?id=55475
http://www.securityfocus.com/archive/1/519770/30/0/threaded
http://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/
http://securityreason.com/securityalert/8525
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041

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