CVE-2015-2694

2015-05-2519:59:00

CWE-264

[email protected]

web.nvd.nist.gov

cve-2015-2694

mit kerberos 5

krb5

kdcpreauth modules

preauthentication bypass

7.4 High

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.004 Low

EPSS

Percentile

74.4%

JSON

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.

CPENameOperatorVersion
mit:kerberos_5mit kerberos 5eq1.12
mit:kerberos_5mit kerberos 5eq1.12.1
mit:kerberos_5mit kerberos 5eq1.12.2
mit:kerberos_5mit kerberos 5eq1.12.3
mit:kerberos_5mit kerberos 5eq1.13
mit:kerberos_5mit kerberos 5eq1.13.1

CPE	Name	Operator	Version
mit:kerberos_5	mit kerberos 5	eq	1.12
mit:kerberos_5	mit kerberos 5	eq	1.12.1
mit:kerberos_5	mit kerberos 5	eq	1.12.2
mit:kerberos_5	mit kerberos 5	eq	1.12.3
mit:kerberos_5	mit kerberos 5	eq	1.13
mit:kerberos_5	mit kerberos 5	eq	1.13.1