CVE-2010-4020

CVE Details

Release Date:

2010-12-02

Description

MIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.

See more information about CVE-2010-4020 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	3.5	Base Metrics:	AV:N/AC:M/Au:S/C:N/I:P/A:N
Access Vector:	Network	Attack Complexity:	Medium
Authentication:	Requires single instance	Confidentiality Impact:	None
Integrity Impact:	Partial	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (krb5)	ELSA-2011-0200	2011-02-10

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