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CVE-2012-2317

17
FAUCET Score

CVE-2012-2317 describes a vulnerability in the Debian php_crypt_revamped.patch for PHP 5.3.x, affecting specific versions of PHP 5 in Debian GNU/Linux squeeze and Ubuntu 10.04 LTS and 11.04. The flaw stems from improper handling of an empty salt string by the PHP crypt function, potentially allowing remote attackers to bypass authentication in applications that rely on this function to generate a salt for password hashing. The vulnerability has a CVSS score of 4.3, indicating a medium severity. It is remotely exploitable with medium attack complexity and could lead to partial integrity compromise (bypassing authentication) without requiring authentication. There is no evidence of active exploitation, nor are there known exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.3.2-1CPE matchmatch criteria
cpe:2.3:a:debian:php5-common:*:*:*:*:*:*:*:*
5.3.3-7\+squeeze4CPE matchmatch criteria
cpe:2.3:a:debian:php5-common:5.3.3-7\+squeeze4:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
<= 5.3.2-1ubuntu4.16CPE matchmatch criteria
cpe:2.3:a:canonical:php5:*:*:*:*:*:*:*:*
5.3.2-1ubuntu4.17CPE matchmatch criteria
cpe:2.3:a:canonical:php5:5.3.2-1ubuntu4.17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0246 is in the 73rd percentile among its peer group of 19,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.debian.org / cgi-bin/bugreport.cgi
openwall.com / lists/oss-security/2012/05/04/7
openwall.com / lists/oss-security/2012/05/05/2
ubuntu.com / usn/USN-1481-1