23005 : crypt_blowfish crypt_gensalt*() Functions Salt Generation Weakness
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2006-02-07

Description

(Description Provided by CVE) : The crypt_gensalt functions for BSDI-style extended DES-based and FreeBSD-sytle MD5-based password hashes in crypt_blowfish 0.4.7 and earlier do not evenly and randomly distribute salts, which makes it easier for attackers to guess passwords from a stolen password file due to the increased number of collisions.

Classification

Unknown or Incomplete

Products

Unknown or Incomplete

References

Secunia Advisory ID: 18772 20232 20653 20782
CVE ID: 2006-0591 (see also: NVD)
Other Advisory URL: ftp://patches.sgi.com/support/free/security/advisories/20060602-01-U.asc http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/glibc/crypt_blowfish/crypt_gensalt.c?only_with_tag=CRYPT_BLOWFISH_1_0
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-02/0094.html
http://archives.neohapsis.com/archives/bugtraq/2006-02/0095.html
http://attrition.org/pipermail/vim/2006-February/000554.html
Vendor Specific Advisory URL: http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm
RedHat RHSA: RHSA-2006:0526

Tools & Filters

	21595

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 1.2
Source: nvd.nist.gov | Generated: 2006-02-08 | Disagree?

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