CVEvulnerability

CVE-2010-4020

6.3 MEDIUM Published 2010-12-02 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2010-12-02
Last modified
2026-06-16
Assigner
[email protected]
CVSS 3.0 ([email protected])
6.3 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS 2.0 ([email protected])
3.5 LOW — AV:N/AC:M/Au:S/C:N/I:P/A:N
Weaknesses
CWE-310

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.

Affected configurations

• mit kerberos 5 1.8 • mit kerberos 5 1.8.1 • mit kerberos 5 1.8.2 • mit kerberos 5 1.8.3

Related

Weakness · not in database (1)

References