Vulnerability CVE-2012-2317


Published: 2012-08-07

Description:
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.

Type:

CWE-310

(Cryptographic Issues)

Vendor: Canonical
Product: PHP5 
Version:
5.3.5-1ubuntu7.9
5.3.5-1ubuntu7.10
5.3.2-1ubuntu4.17
5.3.2-1ubuntu4.16
Product: Ubuntu linux 
Version: 11.04; 10.04;
Vendor: Debian
Product: Php5-common 
Version: 5.3.3-7+squeeze4; 5.3.2-1;
Product: Debian linux 

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None

 References:
http://www.ubuntu.com/usn/USN-1481-1
http://www.openwall.com/lists/oss-security/2012/05/05/2
http://www.openwall.com/lists/oss-security/2012/05/04/7
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=581170

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