Access Restriction Bypass Affecting krb5 package, versions <1.12.1+dfsg-19+deb8u3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.43% (76th percentile)

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  • Snyk IDSNYK-DEBIAN8-KRB5-395837
  • published25 May 2015
  • disclosed25 May 2015

Introduced: 25 May 2015

CVE-2015-2694  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:8 krb5 to version 1.12.1+dfsg-19+deb8u3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.

CVSS Scores

version 3.1