CVE-2006-0591
First published: Wed Feb 08 2006(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openwall Crypt Blowfish | =0.4.7 |
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Reference Links
- http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/glibc/crypt_blowfish/crypt_gensalt.c?only_with_tag=CRYPT_BLOWFISH_1_0
- http://secunia.com/advisories/18772
- http://www.osvdb.org/23005
- http://www.redhat.com/support/errata/RHSA-2006-0526.html
- http://secunia.com/advisories/20232
- http://secunia.com/advisories/20782
- http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm
- http://secunia.com/advisories/20653
- http://www.vupen.com/english/advisories/2006/0477
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24590
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11502
- http://www.securityfocus.com/archive/1/424260/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2006-0591?
CVE-2006-0591 is classified as a high severity vulnerability due to the ease with which attackers can guess passwords.
How does CVE-2006-0591 affect password security?
CVE-2006-0591 affects password security by allowing attackers to exploit uneven salt distribution, increasing the likelihood of password cracking.
How do I fix CVE-2006-0591?
To fix CVE-2006-0591, upgrade to a later version of crypt_blowfish that addresses the salt distribution issue.
Which versions of crypt_blowfish are affected by CVE-2006-0591?
CVE-2006-0591 specifically affects crypt_blowfish version 0.4.7 and earlier.
What specific functions are involved in CVE-2006-0591?
The crypt_gensalt functions are involved in CVE-2006-0591, leading to vulnerabilities in extended DES and MD5-based password hashing.
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