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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2007-0956
• https://exchange.xforce.ibmcloud.com/vulnerabilities/33414
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10046
• http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.html
• http://secunia.com/advisories/24706
• http://secunia.com/advisories/24735
• http://secunia.com/advisories/24736
• http://secunia.com/advisories/24740
• http://secunia.com/advisories/24750
• http://secunia.com/advisories/24755
• http://secunia.com/advisories/24757
• http://secunia.com/advisories/24785
• http://secunia.com/advisories/24786
• http://secunia.com/advisories/24817
• http://security.gentoo.org/glsa/glsa-200704-02.xml
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1
• http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt
• http://www.debian.org/security/2007/dsa-1276
• http://www.kb.cert.org/vuls/id/220816
• http://www.mandriva.com/security/advisories?name=MDKSA-2007:077
• http://www.redhat.com/support/errata/RHSA-2007-0095.html
• http://www.securityfocus.com/archive/1/464590/100/0/threaded
• http://www.securityfocus.com/archive/1/464666/100/0/threaded
• http://www.securityfocus.com/archive/1/464814/30/7170/threaded
• http://www.securityfocus.com/bid/23281
• http://www.securitytracker.com/id?1017848
• http://www.ubuntu.com/usn/usn-449-1
• http://www.us-cert.gov/cas/techalerts/TA07-093B.html
• http://www.vupen.com/english/advisories/2007/1218
• http://www.vupen.com/english/advisories/2007/1249