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CVE-2012-2317

UnknownEPSS 2.46%

Last modified

CVE-2012-2317 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.46% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.46%

82.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DebianPhp5-Common<= 5.3.2-1
DebianPhp5-Common5.3.3-7\+squeeze4
DebianDebian LinuxAll versions
CanonicalPhp5<= 5.3.2-1ubuntu4.16
CanonicalPhp55.3.2-1ubuntu4.17
CanonicalUbuntu Linux10.04
CanonicalPhp5<= 5.3.5-1ubuntu7.9
CanonicalPhp55.3.5-1ubuntu7.10
CanonicalUbuntu Linux11.04

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2012-2317?
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.
How severe is CVE-2012-2317?
Severity scoring for CVE-2012-2317 is pending analysis. The EPSS model estimates a 2.46% probability of exploitation in the next 30 days.
How do I fix CVE-2012-2317?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-2317?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST