National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-2317)

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NVD contains:

CVE Vulnerabilities: 56736
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Last updated: Tue Jun 18 20:31:56 EDT 2013

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Vulnerability Summary for CVE-2012-2317

Original release date:08/07/2012

Last revised:08/08/2012

Source: US-CERT/NIST

Overview

The Debian php_crypt_revamped.patch patch for PHP 5.3.x, as used in the php5 package before 5.3.3-7+squeeze4 in Debian GNU/Linux squeeze, the php5 package before 5.3.2-1ubuntu4.17 in Ubuntu 10.04 LTS, and the php5 package before 5.3.5-1ubuntu7.10 in Ubuntu 11.04, does not properly handle an empty salt string, which might allow remote attackers to bypass authentication by leveraging an application that relies on the PHP crypt function to choose a salt for password hashing.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 8.6

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Medium

Authentication: Not required to exploit

Impact Type:Allows unauthorized modification

References to Advisories, Solutions, and Tools

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External Source: UBUNTU

Name: USN-1481-1

Hyperlink:http://www.ubuntu.com/usn/USN-1481-1

External Source: MLIST

Name: [oss-security] 20120505 Re: Debian/Ubuntu php_crypt_revamped.patch

Hyperlink:http://www.openwall.com/lists/oss-security/2012/05/05/2

External Source: MLIST

Name: [oss-security] 20120504 Debian/Ubuntu php_crypt_revamped.patch

Hyperlink:http://www.openwall.com/lists/oss-security/2012/05/04/7

External Source: CONFIRM

Name: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=581170

Hyperlink:http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=581170