MIT Kerberos KDC logging routine format string
|kerberos-kdc-format-string (11189)||High Risk|
The MIT Kerberos Key Distribution Center (KDC) is vulnerable to a format string attack, caused by a vulnerability in the KDC logging routines. A remote attacker could exploit this vulnerability by passing malicious format strings to the affected server to cause the KDC to crash or possibly execute arbitrary commands on the system.
Upgrade to the latest version of MIT Kerberos 5 (krb5-1.2.7 or later), available from the MIT Kerberos Web site. See References.
For Conectiva Linux 8.0:
Upgrade to the latest version of krb5 (1.2.8-1U80_1cl or later), as listed in Conectiva Linux Security Announcement CLSA-2003:639. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
- CIAC Information Bulletin N-037: Multiple Vulnerabilities in Old Releases of MIT Kerberos.
- Conectiva Linux Security Announcement CLSA-2003:639: krb5.
- MIT Kerberos Web site: Kerberos: The Network Authentication Protocol.
- MIT krb5 Security Advisory 2003-001: Multiple vulnerabilities in old releases of MIT Kerberos.
- BID-6712: MIT Kerberos Key Distribution Center Remote Format String Vulnerabilities
- CVE-2003-0060: Format string vulnerabilities in the logging routines for MIT Kerberos V5 Key Distribution Center (KDC) before 1.2.5 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in Kerberos principal names.
- OSVDB ID: 4879: MIT Kerberos 5 Key Distribution Center Format String Logging
- US-CERT VU#787523: MIT Kerberos V5 KDC logging routines use unsafe format strings
- Conectiva Linux 8.0
- MIT Kerberos 5-1.2.1
- MIT Kerberos 5-1.2.2
- MIT Kerberos 5-1.2.3
- MIT Kerberos 5-1.2.4
Jan 28, 2003
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this