CVE-2012-2143

MEDIUM

Description

The crypt_des (aka DES-based crypt) function in FreeBSD before 9.0-RELEASE-p2, as used in PHP, PostgreSQL, and other products, does not process the complete cleartext password if this password contains a 0x80 character, which makes it easier for context-dependent attackers to obtain access via an authentication attempt with an initial substring of the intended password, as demonstrated by a Unicode password.

References

http://git.php.net/?p=php-src.git;a=commit;h=aab49e934de1fff046e659cbec46e3d053b41c34

http://git.postgresql.org/gitweb/?p=postgresql.git&a=commit&h=932ded2ed51e8333852e370c7a6dad75d9f236f9

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705

http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082258.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082292.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082294.html

http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html

http://lists.opensuse.org/opensuse-updates/2012-09/msg00102.html

http://lists.opensuse.org/opensuse-updates/2012-10/msg00013.html

http://lists.opensuse.org/opensuse-updates/2012-10/msg00024.html

http://rhn.redhat.com/errata/RHSA-2012-1037.html

http://secunia.com/advisories/49304

http://secunia.com/advisories/50718

http://security.freebsd.org/advisories/FreeBSD-SA-12:02.crypt.asc

http://support.apple.com/kb/HT5501

http://www.debian.org/security/2012/dsa-2491

http://www.mandriva.com/security/advisories?name=MDVSA-2012:092

http://www.postgresql.org/docs/8.3/static/release-8-3-19.html

http://www.postgresql.org/docs/8.4/static/release-8-4-12.html

http://www.postgresql.org/docs/9.0/static/release-9-0-8.html

http://www.postgresql.org/docs/9.1/static/release-9-1-4.html

http://www.postgresql.org/support/security/

http://www.securitytracker.com/id?1026995

https://bugzilla.redhat.com/show_bug.cgi?id=816956

Details

Source: MITRE

Published: 2012-07-05

Updated: 2016-12-08

Type: CWE-310

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM