PT-2006-1652 · Unknown+1 · Crypt Blowfish+1

Marko Kreen · Published 2006-02-08 · Updated 2018-10-19 · CVE-2006-0591

Positive Technologies (AI Summary)

CVSS v2.0

1.2

Low

Base vector

AV:L/AC:H/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions crypt blowfish versions 0.4.7 and earlier

Description The issue affects the crypt gensalt functions for BSDI-style extended DES-based and FreeBSD-style MD5-based password hashes, causing salts to not be evenly and randomly distributed. This increases the likelihood of collisions, making it easier for attackers to guess passwords from a stolen password file.

Recommendations For versions 0.4.7 and earlier, consider implementing an alternative method for generating salts to improve password security until a fixed version is available. As a temporary workaround, restrict access to password files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-310

Related Identifiers

CVE-2006-0591

RHSA-2006:0526

RHSA-2006_0526

Affected Products

Red Hat

Crypt Blowfish

References · 18

• https://nvd.nist.gov/vuln/detail/CVE-2006-0591 · Security Note
• http://secunia.com/advisories/20653 · Vendor Advisory
• ftp://patches.sgi.com/support/free/security/advisories/20060602-01-U.asc · Vendor Advisory
• http://secunia.com/advisories/20232 · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2006-0526.html · Vendor Advisory
• http://vupen.com/english/advisories/2006/0477 · Vendor Advisory
• http://secunia.com/advisories/18772 · Vendor Advisory
• http://secunia.com/advisories/20782 · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2006-2313 · Note
• http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm · Note
• https://access.redhat.com/security/cve/CVE-2006-0591 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11502 · Note
• http://securityfocus.com/archive/1/424260/100/0/threaded · Note
• https://access.redhat.com/errata/RHSA-2006:0526 · Note
• http://osvdb.org/23005 · Note