Signature Detail
Short Name |
APP:KERBEROS:KDC-AUTH-DOS |
|---|---|
Severity |
Medium |
Recommended |
No |
Recommended Action |
Drop |
Category |
APP |
Keywords |
MIT Kerberos KDC Authentication Denial of Service |
Release Date |
2010/10/13 |
Update Number |
1791 |
Supported Platforms |
idp-4.1+, isg-3.5+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
APP: MIT Kerberos KDC Authentication Denial of Service
This signature detects attempts to exploit a known denial of service vulnerability in MIT's Kerberos KDC. It is due to an assertion failure when handling invalid Authentication Service requests. Remote unauthenticated attackers can exploit this by sending a crafted AS-REQ packet to the target KDC, causing it to crash, creating a denial-of-service condition.
Extended Description
MIT Kerberos is prone to a remote denial-of-service vulnerability. An attacker may exploit this issue to crash the KDC service, resulting in a denial-of-service condition. MIT Kerberos 5 1.7 and 1.7.1 are vulnerable.
Affected Products
- Apple Mac OS X 10.6
- Apple Mac OS X 10.6.1
- Apple Mac OS X 10.6.2
- Apple Mac OS X 10.6.3
- Apple Mac OS X Server 10.6
- Apple Mac OS X Server 10.6.1
- Apple Mac OS X Server 10.6.2
- Apple Mac OS X Server 10.6.3
- Gentoo Linux
- MIT Kerberos 5 1.7
- MIT Kerberos 5 1.7.1
- Red Hat Fedora 12
- SuSE openSUSE 11.2
- Ubuntu Ubuntu Linux 9.10 Amd64
- Ubuntu Ubuntu Linux 9.10 I386
- Ubuntu Ubuntu Linux 9.10 Lpia
- Ubuntu Ubuntu Linux 9.10 Powerpc
- Ubuntu Ubuntu Linux 9.10 Sparc
References
- BugTraq: 38260
- CVE: CVE-2010-0283