APP: MIT Kerberos 5 Key Distribution Center Denial of Service
This signature detects attempts to exploit a known vulnerability against MIT Kerberos 5 Key Distribution Center. A successful attack can result in a denial-of-service condition.
Extended Description
The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions.
Affected Products
Mit kerberos_5
References
BugTraq: 50273
CVE: CVE-2011-1527
URL: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt
Short Name
APP:KERBEROS:MIT-KRB5-KDC-DOS
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
APP
Keywords
5 CVE-2011-1527 Center Denial Distribution Kerberos Key MIT Service bid:50273 of
Release Date
12/08/2015
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3761
Port
UDP/88
False Positive
Unknown
Vendors
Mit
CVSS Score
7.8