Improper access control in Kerberos 5 - CVE-2014-9422

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Main Vulnerability Database Vulnerabilities #VU40887

Improper access control in Kerberos 5 - CVE-2014-9422

Published: February 19, 2015 / Updated: August 9, 2020


Vulnerability identifier: #VU40887
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-9422
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: MIT
Affected software:
Kerberos 5

Detailed vulnerability description

The vulnerability allows a remote #AU# to #BASIC_IMPACT#.

The check_rpcsec_auth function in kadmin/server/kadm_rpc_svc.c in kadmind in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 allows remote authenticated users to bypass a kadmin/* authorization check and obtain administrative access by leveraging access to a two-component principal with an initial "kadmind" substring, as demonstrated by a "ka/x" principal.


How to mitigate CVE-2014-9422

Install update from vendor's website.

Sources