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CVSSv2

CVE-2007-0956

Published: 06/04/2007 Updated: 02/02/2021
CVSS v2 Base Score: 10 | Impact Score: 10 | Exploitability Score: 10
VMScore: 890
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Subscribe to Kerberos 5

Vulnerability Summary

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

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mit kerberos 5

debian debian linux 3.1

debian debian linux 4.0

canonical ubuntu linux 5.10

canonical ubuntu linux 6.06

canonical ubuntu linux 6.10

Vendor Advisories

Ubuntu Security Notice: krb5 vulnerabilities
The krb5 telnet service did not appropriately verify user names A remote attacker could log in as the root user by requesting a specially crafted user name (CVE-2007-0956) ...
Debian Security Advisories: DSA-1276-1 krb5 -- several vulnerabilities
Several remote vulnerabilities have been discovered in the MIT reference implementation of the Kerberos network authentication protocol suite, which may lead to the execution of arbitrary code The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-0956 It was discovered that the krb5 telnet daemon perform ...

References

CWE-306http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txthttp://www.debian.org/security/2007/dsa-1276http://www.redhat.com/support/errata/RHSA-2007-0095.htmlhttp://www.ubuntu.com/usn/usn-449-1http://www.kb.cert.org/vuls/id/220816http://secunia.com/advisories/24706http://secunia.com/advisories/24736http://secunia.com/advisories/24757http://security.gentoo.org/glsa/glsa-200704-02.xmlftp://patches.sgi.com/support/free/security/advisories/20070401-01-P.aschttp://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.htmlhttp://www.securityfocus.com/bid/23281http://www.securitytracker.com/id?1017848http://secunia.com/advisories/24740http://secunia.com/advisories/24750http://secunia.com/advisories/24755http://secunia.com/advisories/24785http://secunia.com/advisories/24786http://secunia.com/advisories/24817http://secunia.com/advisories/24735http://www.mandriva.com/security/advisories?name=MDKSA-2007:077http://www.us-cert.gov/cas/techalerts/TA07-093B.htmlhttp://www.vupen.com/english/advisories/2007/1218http://www.vupen.com/english/advisories/2007/1249https://exchange.xforce.ibmcloud.com/vulnerabilities/33414https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10046http://www.securityfocus.com/archive/1/464814/30/7170/threadedhttp://www.securityfocus.com/archive/1/464666/100/0/threadedhttp://www.securityfocus.com/archive/1/464590/100/0/threadedhttps://usn.ubuntu.com/449-1/https://nvd.nist.govhttps://www.kb.cert.org/vuls/id/220816
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