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Vulnerability Details : 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.
Publish Date : 2007-04-05 Last Update Date : 2010-09-15
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- CVSS Scores & Vulnerability Types

CVSS Score
7.6
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access Admin
Vulnerability Type(s) Bypass a restriction or similar
CWE ID CWE id is not defined for this vulnerability

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat critical 2007-02-21 2007-04-03
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-0956 oval:org.opensuse.security:def:20070956 unix
DSA-1276-1 krb5 - several vulnerabilities oval:org.mitre.oval:def:18864 unix
ELSA-2007:0095: krb5 security update (Critical) oval:org.mitre.oval:def:22677 unix
RHSA-2007:0095: krb5 security update (Critical) oval:com.redhat.rhsa:def:20070095 unix
The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system ac... oval:org.mitre.oval:def:10046 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-0956

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 3.1 Version Details Vulnerabilities
2 OS Debian Debian Linux 4.0 Version Details Vulnerabilities
3 Application MIT Kerberos 5-1.6 Version Details Vulnerabilities
4 OS Rpath Linux 1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 2
MIT Kerberos 1
Rpath Linux 1

- References For CVE-2007-0956

ftp://patches.sgi.com/support/free/security/advisories/20070401-01-P.asc
SGI 20070401-01-P
http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.html
SUSE SUSE-SA:2007:025
http://secunia.com/advisories/24735
SECUNIA 24735
http://secunia.com/advisories/24740
SECUNIA 24740
http://secunia.com/advisories/24750
SECUNIA 24750
http://secunia.com/advisories/24755
SECUNIA 24755
http://secunia.com/advisories/24817
SECUNIA 24817
http://secunia.com/advisories/24786
SECUNIA 24786
http://secunia.com/advisories/24785
SECUNIA 24785
http://security.gentoo.org/glsa/glsa-200704-02.xml
GENTOO GLSA-200704-02
http://www.frsirt.com/english/advisories/2007/1218
VUPEN ADV-2007-1218
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1
SUNALERT 102867
http://www.securityfocus.com/archive/1/archive/1/464590/100/0/threaded
BUGTRAQ 20070403 MITKRB5-SA-2007-001: telnetd allows login as arbitrary user [CVE-2007-0956]
http://www.mandriva.com/security/advisories?name=MDKSA-2007:077
MANDRIVA MDKSA-2007:077
http://www.frsirt.com/english/advisories/2007/1249
VUPEN ADV-2007-1249
http://www.securityfocus.com/bid/23281
BID 23281 MIT Kerberos 5 Telnet Daemon Authentication Bypass Vulnerability Release Date:2007-05-17
http://www.securityfocus.com/archive/1/archive/1/464666/100/0/threaded
BUGTRAQ 20070404 rPSA-2007-0063-1 krb5 krb5-server krb5-services krb5-test krb5-workstation
http://www.securitytracker.com/id?1017848
SECTRACK 1017848
http://xforce.iss.net/xforce/xfdb/33414
XF kerberos-telnet-security-bypass(33414)
http://secunia.com/advisories/24706
SECUNIA 24706
http://secunia.com/advisories/24736
SECUNIA 24736
http://secunia.com/advisories/24757
SECUNIA 24757
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt CONFIRM
http://www.redhat.com/support/errata/RHSA-2007-0095.html
REDHAT RHSA-2007:0095
http://www.debian.org/security/2007/dsa-1276
DEBIAN DSA-1276
http://www.securityfocus.com/archive/1/archive/1/464814/30/7170/threaded
BUGTRAQ 20070405 FLEA-2007-0008-1: krb5
http://www.ubuntu.com/usn/usn-449-1
UBUNTU USN-449-1
http://www.kb.cert.org/vuls/id/220816
CERT-VN VU#220816
http://www.us-cert.gov/cas/techalerts/TA07-093B.html
CERT TA07-093B

- Metasploit Modules Related To CVE-2007-0956

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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