32782 : PHP PECL Zip Extension zip:// URL Wrapper Overflow
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Info

Last Modified
about 1 year ago

Percent Complete
100%

Disclosure
Mar 09, 2007

Discovery
Unknown

Dates

Exploit
Mar 09, 2007

Solution
Unknown

Description

 A remote overflow exists in the PECL Zip extension. The application fails to perform a boundary check for the 'zip:// URL' when copying the data on stack resulting in a stack-based overflow. With a specially overlong 'zip:// URL', an attacker can cause arbitrary code execution resulting in a loss of integrity.

Classification

 Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Public
Disclosure: OSVDB Verified

Technical

 Since the PECL Zip extension is bundled in the PHP 5.2.0 distribution, this release is also reported vulnerable.

Solution

 Upgrade to PECL Zip extension version 1.8.4 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products
The PHP Group
Watch-list
PHP
Watch-list
 5.2.0
PECL Zip
Watch-list
 1.8.3

References

Tools & Filters
25677 26107

Credit
  • Stefan Esser - sesserhardened-php.net - www.hardened-php.net

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2007-03-13 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

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