APP: MIT Kerberos 5 SPNEGO Denial of Service
This signature detects attempts to exploit a known vulnerability against MIT Kerberos 5. A successful attack can result in a denial-of-service condition.
Extended Description
The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.
Affected Products
Mit kerberos_5
References
CVE: CVE-2014-4344
Short Name
APP:KERBEROS:SPNEGO-5-DOS
Severity
Major
Recommended
False
Recommended Action
Drop
Category
APP
Keywords
5 CVE-2014-4344 Denial Kerberos MIT SPNEGO Service of
Release Date
08/19/2014
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
TCP/1234
False Positive
Unknown
Vendors
Mit
Redhat
Debian
CVSS Score
7.8