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.
Published: 2010-12-02
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2010-3996 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.
Ubuntu USN Ubuntu USN USN-1030-1 Kerberos vulnerabilities
History

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Subscriptions

Mit Kerberos 5
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T03:26:12.249Z

Reserved: 2010-10-20T00:00:00.000Z

Link: CVE-2010-4020

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2010-12-02T16:22:21.207

Modified: 2026-04-29T01:13:23.040

Link: CVE-2010-4020

cve-icon Redhat

Severity : Moderate

Publid Date: 2010-11-30T00:00:00Z

Links: CVE-2010-4020 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses