CVE-2009-1384
First published: Tue May 26 2009(Updated: )
A security flaw was found in PAM pam_krb5 module, providing user authentication based on Kerberos principals. A remote attacker could use this flaw to recognize, if some username/login belongs to set of user accounts, existing on the system, and subsequently perform dictionary based password guess attack.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux | =5 | |
| Red Hat Enterprise Linux | =5 | |
| Red Hat Enterprise Linux | =5 | |
| Red Hat Enterprise Linux | =5 | |
| pam_krb5 (PAM module) | =2.2.14 | |
| pam_krb5 (PAM module) | =2.3 | |
| pam_krb5 (PAM module) | =2.3.4 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=502602
- http://www.securityfocus.com/bid/35112
- http://www.openwall.com/lists/oss-security/2009/05/27/1
- http://osvdb.org/54791
- http://secunia.com/advisories/35230
- http://www.vupen.com/english/advisories/2009/1448
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:054
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://secunia.com/advisories/43314
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9652
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7081
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-1384
- http://www.redhat.com/security/updates/classification/
- https://rhn.redhat.com/errata/RHSA-2010-0258.html
Frequently Asked Questions
What is the severity of CVE-2009-1384?
CVE-2009-1384 is considered a moderate severity vulnerability due to the potential for remote attackers to discern valid usernames.
How do I fix CVE-2009-1384?
To mitigate CVE-2009-1384, update the pam_krb5 module to a secure version that addresses this issue.
What are the affected versions in CVE-2009-1384?
CVE-2009-1384 primarily affects pam_krb5 module versions 2.2.14, 2.3, and 2.3.4.
Can CVE-2009-1384 be exploited remotely?
Yes, CVE-2009-1384 can be exploited remotely by an attacker who performs dictionary attacks on the authentication system.
What systems are affected by CVE-2009-1384?
CVE-2009-1384 affects systems using specific versions of the pam_krb5 module for user authentication.
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- version/pam_krb5 (pam module)/2.2.14
- version/pam_krb5 (pam module)/2.3
- version/pam_krb5 (pam module)/2.3.4