Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title krb5 vulnerabilities
Informations
Name USN-449-1 First vendor Publication 2007-04-04
Vendor Ubuntu Last vendor Modification 2007-04-04
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 9 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 5.10 Ubuntu 6.06 LTS Ubuntu 6.10

This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the following package versions:

Ubuntu 5.10:
krb5-telnetd 1.3.6-4ubuntu0.2
libkadm55 1.3.6-4ubuntu0.2
libkrb53 1.3.6-4ubuntu0.2

Ubuntu 6.06 LTS:
krb5-telnetd 1.4.3-5ubuntu0.3
libkadm55 1.4.3-5ubuntu0.3
libkrb53 1.4.3-5ubuntu0.3

Ubuntu 6.10:
krb5-telnetd 1.4.3-9ubuntu1.2
libkadm55 1.4.3-9ubuntu1.2
libkrb53 1.4.3-9ubuntu1.2

In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

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)

The krb5 syslog library did not correctly verify the size of log messages. A remote attacker could send a specially crafted message and execute arbitrary code with root privileges. (CVE-2007-0957)

The krb5 administration service was vulnerable to a double-free in the GSS RPC library. A remote attacker could send a specially crafted request and execute arbitrary code with root privileges. (CVE-2007-1216)

Original Source

Url : http://www.ubuntu.com/usn/USN-449-1

CWE : Common Weakness Enumeration

% Id Name
33 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
33 % CWE-415 Double Free
33 % CWE-306 Missing Authentication for Critical Function (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10046
 
Oval ID: oval:org.mitre.oval:def:10046
Title: 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.
Description: 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.
Family: unix Class: vulnerability
Reference(s): CVE-2007-0956
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:10757
 
Oval ID: oval:org.mitre.oval:def:10757
Title: Stack-based buffer overflow in the krb5_klog_syslog function in the kadm5 library, as used by the Kerberos administration daemon (kadmind) and Key Distribution Center (KDC), in MIT krb5 before 1.6.1 allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via crafted arguments, possibly involving certain format string specifiers.
Description: Stack-based buffer overflow in the krb5_klog_syslog function in the kadm5 library, as used by the Kerberos administration daemon (kadmind) and Key Distribution Center (KDC), in MIT krb5 before 1.6.1 allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via crafted arguments, possibly involving certain format string specifiers.
Family: unix Class: vulnerability
Reference(s): CVE-2007-0957
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:11135
 
Oval ID: oval:org.mitre.oval:def:11135
Title: Double free vulnerability in the GSS-API library (lib/gssapi/krb5/k5unseal.c), as used by the Kerberos administration daemon (kadmind) in MIT krb5 before 1.6.1, when used with the authentication method provided by the RPCSEC_GSS RPC library, allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via a message with an "an invalid direction encoding".
Description: Double free vulnerability in the GSS-API library (lib/gssapi/krb5/k5unseal.c), as used by the Kerberos administration daemon (kadmind) in MIT krb5 before 1.6.1, when used with the authentication method provided by the RPCSEC_GSS RPC library, allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via a message with an "an invalid direction encoding".
Family: unix Class: vulnerability
Reference(s): CVE-2007-1216
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:18864
 
Oval ID: oval:org.mitre.oval:def:18864
Title: DSA-1276-1 krb5 - several vulnerabilities
Description: 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.
Family: unix Class: patch
Reference(s): DSA-1276-1
CVE-2007-0956
CVE-2007-0957
CVE-2007-1216
Version: 7
Platform(s): Debian GNU/Linux 4.0
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22677
 
Oval ID: oval:org.mitre.oval:def:22677
Title: ELSA-2007:0095: krb5 security update (Critical)
Description: Double free vulnerability in the GSS-API library (lib/gssapi/krb5/k5unseal.c), as used by the Kerberos administration daemon (kadmind) in MIT krb5 before 1.6.1, when used with the authentication method provided by the RPCSEC_GSS RPC library, allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via a message with an "an invalid direction encoding".
Family: unix Class: patch
Reference(s): ELSA-2007:0095-01
CVE-2007-0956
CVE-2007-0957
CVE-2007-1216
Version: 17
Platform(s): Oracle Linux 5
Product(s): krb5
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 35
Os 3
Os 2

OpenVAS Exploits

Date Description
2009-11-17 Name : Mac OS X Version
File : nvt/macosx_version.nasl
2009-09-23 Name : Solaris Update for kpasswd, libgss.so.1 and libkadm5clnt.so.1 109224-11
File : nvt/gb_solaris_109224_11.nasl
2009-09-23 Name : Solaris Update for kpasswd, libgss.so.1 and libkadm5clnt.so.1 109223-11
File : nvt/gb_solaris_109223_11.nasl
2009-06-03 Name : Solaris Update for Obsoleted by 109223-10
File : nvt/gb_solaris_109223_10.nasl
2009-06-03 Name : Solaris Update for krb5 krb5kdc 116045-02
File : nvt/gb_solaris_116045_02.nasl
2009-06-03 Name : Solaris Update for kadmind & kdb5_util 116044-04
File : nvt/gb_solaris_116044_04.nasl
2009-06-03 Name : Solaris Update for ktutil kdb5_util kadmin kadmin.local kadmind 112925-08
File : nvt/gb_solaris_112925_08.nasl
2009-06-03 Name : Solaris Update for krb5 usr/lib 112923-04
File : nvt/gb_solaris_112923_04.nasl
2009-06-03 Name : Solaris Update for libkadm5 112921-09
File : nvt/gb_solaris_112921_09.nasl
2009-06-03 Name : Solaris Update for libkadm5 116046-09
File : nvt/gb_solaris_116046_09.nasl
2009-06-03 Name : Solaris Update for Obsoleted by 109224-10
File : nvt/gb_solaris_109224_10.nasl
2009-06-03 Name : Solaris Update for libkadm5 library 116175-05
File : nvt/gb_solaris_116175_05.nasl
2009-06-03 Name : Solaris Update for kernel 120011-14
File : nvt/gb_solaris_120011_14.nasl
2009-06-03 Name : Solaris Update for kernel 120012-14
File : nvt/gb_solaris_120012_14.nasl
2009-05-05 Name : HP-UX Update for Kerberos HPSBUX02217
File : nvt/gb_hp_ux_HPSBUX02217.nasl
2009-04-09 Name : Mandriva Update for krb5 MDKSA-2007:077-1 (krb5)
File : nvt/gb_mandriva_MDKSA_2007_077_1.nasl
2009-04-09 Name : Mandriva Update for krb5 MDKSA-2007:077 (krb5)
File : nvt/gb_mandriva_MDKSA_2007_077.nasl
2009-03-23 Name : Ubuntu Update for krb5 vulnerabilities USN-449-1
File : nvt/gb_ubuntu_USN_449_1.nasl
2009-02-27 Name : Fedora Update for krb5 FEDORA-2007-0740
File : nvt/gb_fedora_2007_0740_krb5_fc7.nasl
2009-02-27 Name : Fedora Update for krb5 FEDORA-2007-2066
File : nvt/gb_fedora_2007_2066_krb5_fc7.nasl
2009-02-27 Name : Fedora Update for krb5 FEDORA-2007-2017
File : nvt/gb_fedora_2007_2017_krb5_fc7.nasl
2009-02-27 Name : Fedora Update for krb5 FEDORA-2007-620
File : nvt/gb_fedora_2007_620_krb5_fc5.nasl
2009-02-27 Name : Fedora Update for krb5 FEDORA-2007-409
File : nvt/gb_fedora_2007_409_krb5_fc5.nasl
2009-02-27 Name : Fedora Update for krb5 FEDORA-2007-408
File : nvt/gb_fedora_2007_408_krb5_fc6.nasl
2009-02-16 Name : Fedora Update for krb5 FEDORA-2008-2637
File : nvt/gb_fedora_2008_2637_krb5_fc7.nasl
2009-01-28 Name : SuSE Update for krb5 SUSE-SA:2007:025
File : nvt/gb_suse_2007_025.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200704-02 (mit-krb5)
File : nvt/glsa_200704_02.nasl
2008-01-17 Name : Debian Security Advisory DSA 1276-1 (krb5)
File : nvt/deb_1276_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
34106 MIT Kerberos telnet Crafted Username Remote Authentication Bypass

34105 MIT Kerberos 5 kadmind GSS-API Library Remote Key Database Manipulation

34104 MIT Kerberos 5 KDC krb5_klog_syslog() Function Remote Overflow

Snort® IPS/IDS

Date Description
2014-01-10 MIT Kerberos V% KAdminD klog_vsyslog server overflow attempt
RuleID : 16207 - Revision : 11 - Type : SERVER-WEBAPP
2014-01-10 kerberos login environment variable authentication bypass attempt
RuleID : 10464 - Revision : 8 - Type : PROTOCOL-TELNET

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2007-0095.nasl - Type : ACT_GATHER_INFO
2007-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_krb5-apps-servers-3022.nasl - Type : ACT_GATHER_INFO
2007-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_krb5-3046.nasl - Type : ACT_GATHER_INFO
2007-11-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-449-1.nasl - Type : ACT_GATHER_INFO
2007-10-17 Name : The remote openSUSE host is missing a security update.
File : suse_krb5-3045.nasl - Type : ACT_GATHER_INFO
2007-10-17 Name : The remote openSUSE host is missing a security update.
File : suse_krb5-apps-servers-3021.nasl - Type : ACT_GATHER_INFO
2007-09-25 Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHSS_36286.nasl - Type : ACT_GATHER_INFO
2007-09-25 Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHSS_36361.nasl - Type : ACT_GATHER_INFO
2007-09-25 Name : The remote HP-UX host is missing a security-related patch.
File : hpux_PHSS_34991.nasl - Type : ACT_GATHER_INFO
2007-04-21 Name : The remote host is missing a Mac OS X update that fixes a security issue.
File : macosx_SecUpd2007-004.nasl - Type : ACT_GATHER_INFO
2007-04-10 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1276.nasl - Type : ACT_GATHER_INFO
2007-04-05 Name : It is possible to log into the remote host using telnet without supplying any...
File : krb_telnet_env.nasl - Type : ACT_ATTACK
2007-04-05 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2007-077.nasl - Type : ACT_GATHER_INFO
2007-04-05 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2007-0095.nasl - Type : ACT_GATHER_INFO
2007-04-05 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200704-02.nasl - Type : ACT_GATHER_INFO
2007-04-05 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2007-0095.nasl - Type : ACT_GATHER_INFO
2006-11-06 Name : The remote host is missing Sun Security Patch number 116462-06
File : solaris9_116462.nasl - Type : ACT_GATHER_INFO
2005-04-17 Name : The remote host is missing Sun Security Patch number 109223-10
File : solaris8_109223.nasl - Type : ACT_GATHER_INFO
2005-04-17 Name : The remote host is missing Sun Security Patch number 109224-10
File : solaris8_x86_109224.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:04:18
  • Multiple Updates