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Last updated: 5/26/2016 12:28:02 AM

CVE Publication rate: 20.83

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Vulnerability Workload Index: 12.64
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Vulnerability Summary for CVE-2007-0956

Original release date: 04/05/2007
Last revised: 03/07/2011


The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a username beginning with a '-' character, a similar issue to CVE-2007-0882.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.6 HIGH
Impact Subscore: 10.0
Exploitability Subscore: 4.9
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service


The vendor will address this issue in the upcoming krb5-1.6.1 release.

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2007-1249
External Source: REDHAT
Name: RHSA-2007:0095
External Source: BUGTRAQ
Name: 20070405 FLEA-2007-0008-1: krb5
External Source: XF
Name: kerberos-telnet-security-bypass(33414)
External Source: CONFIRM
Name: http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt
Type: Advisory
External Source: BUGTRAQ
Name: 20070404 rPSA-2007-0063-1 krb5 krb5-server krb5-services krb5-test krb5-workstation
External Source: SUNALERT
Name: 102867
External Source: BUGTRAQ
Name: 20070403 MITKRB5-SA-2007-001: telnetd allows login as arbitrary user [CVE-2007-0956]
External Source: SECTRACK
Name: 1017848
US-CERT Vulnerability Note: CERT-VN
Name: VU#220816
Type: Advisory
External Source: BID
Name: 23281
External Source: SUSE
Name: SUSE-SA:2007:025
External Source: VUPEN
Name: ADV-2007-1218
External Source: GENTOO
Name: GLSA-200704-02
External Source: SGI
Name: 20070401-01-P
External Source: DEBIAN
Name: DSA-1276
Type: Advisory
US-CERT Vulnerability Note: CERT
Name: TA07-093B
External Source: OVAL
Name: oval:org.mitre.oval:def:10046
External Source: UBUNTU
Name: USN-449-1
External Source: MANDRIVA
Name: MDKSA-2007:077

References to Check Content

Identifier: oval:org.mitre.oval:def:10046
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Vulnerable software and versions

+ Configuration 1
+ OR
+ Configuration 2
+ OR
cpe:/a:mit:kerberos:5-1.6 and previous versions

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)