Vulnerability Monitor

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CVE-2007-0956

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.

Published

2007-04-06T01:19:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 10.0 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-306

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mit	kerberos_5	< 1.6.1	Yes
Operating System	debian	debian_linux	3.1	Yes
Operating System	debian	debian_linux	4.0	Yes
Operating System	canonical	ubuntu_linux	5.10	Yes
Operating System	canonical	ubuntu_linux	6.06	Yes
Operating System	canonical	ubuntu_linux	6.10	Yes

References

ftp://patches.sgi.com/support/free/security/advisories/20070401-01-P.asc Broken Link ([email protected])
http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.html Broken Link ([email protected])
http://secunia.com/advisories/24706 Third Party Advisory ([email protected])
http://secunia.com/advisories/24735 Third Party Advisory ([email protected])
http://secunia.com/advisories/24736 Third Party Advisory ([email protected])
http://secunia.com/advisories/24740 Third Party Advisory ([email protected])
http://secunia.com/advisories/24750 Third Party Advisory ([email protected])
http://secunia.com/advisories/24755 Third Party Advisory ([email protected])
http://secunia.com/advisories/24757 Third Party Advisory ([email protected])
http://secunia.com/advisories/24785 Third Party Advisory ([email protected])
http://secunia.com/advisories/24786 Third Party Advisory ([email protected])
http://secunia.com/advisories/24817 Third Party Advisory ([email protected])
http://security.gentoo.org/glsa/glsa-200704-02.xml Third Party Advisory ([email protected])
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1 Broken Link ([email protected])
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt Vendor Advisory ([email protected])
http://www.debian.org/security/2007/dsa-1276 Third Party Advisory ([email protected])
http://www.kb.cert.org/vuls/id/220816 Third Party Advisory, US Government Resource ([email protected])
http://www.mandriva.com/security/advisories?name=MDKSA-2007:077 Third Party Advisory ([email protected])
http://www.redhat.com/support/errata/RHSA-2007-0095.html Third Party Advisory ([email protected])
http://www.securityfocus.com/archive/1/464590/100/0/threaded Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/archive/1/464666/100/0/threaded Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/archive/1/464814/30/7170/threaded Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/23281 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id?1017848 Third Party Advisory, VDB Entry ([email protected])
http://www.ubuntu.com/usn/usn-449-1 Third Party Advisory ([email protected])
http://www.us-cert.gov/cas/techalerts/TA07-093B.html Third Party Advisory, US Government Resource ([email protected])
http://www.vupen.com/english/advisories/2007/1218 Third Party Advisory ([email protected])
http://www.vupen.com/english/advisories/2007/1249 Third Party Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/33414 Third Party Advisory, VDB Entry ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10046 Broken Link, Third Party Advisory ([email protected])
ftp://patches.sgi.com/support/free/security/advisories/20070401-01-P.asc Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24706 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24735 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24736 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24740 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24750 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24755 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24757 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24785 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24786 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24817 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-200704-02.xml Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2007/dsa-1276 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/220816 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDKSA-2007:077 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2007-0095.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/464590/100/0/threaded Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/464666/100/0/threaded Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/464814/30/7170/threaded Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/23281 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1017848 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/usn-449-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.us-cert.gov/cas/techalerts/TA07-093B.html Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2007/1218 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2007/1249 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/33414 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10046 Broken Link, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)