GLSA-200704-02 : MIT Kerberos 5: Arbitrary remote code execution

high Nessus Plugin ID 24935
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VPR Score: 7.4

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200704-02 (MIT Kerberos 5: Arbitrary remote code execution)

The Kerberos telnet daemon fails to properly handle usernames allowing unauthorized access to any account (CVE-2007-0956). The Kerberos administration daemon, the KDC and possibly other applications using the MIT Kerberos libraries are vulnerable to the following issues. The krb5_klog_syslog function from the kadm5 library fails to properly validate input leading to a stack overflow (CVE-2007-0957). The GSS-API library is vulnerable to a double-free attack (CVE-2007-1216).
Impact :

By exploiting the telnet vulnerability a remote attacker may obtain access with root privileges. The remaining vulnerabilities may allow an authenticated remote attacker to execute arbitrary code with root privileges.
Workaround :

There is no known workaround at this time.

Solution

All MIT Kerberos 5 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-crypt/mit-krb5-1.5.2-r1'

See Also

https://security.gentoo.org/glsa/200704-02

Plugin Details

Severity: High

ID: 24935

File Name: gentoo_GLSA-200704-02.nasl

Version: 1.17

Type: local

Published: 4/5/2007

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: High

VPR Score: 7.4

CVSS v2.0

Base Score: 9

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:mit-krb5, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/3/2007

Vulnerability Publication Date: 4/3/2007

Exploitable With

CANVAS (D2ExploitPack)

Reference Information

CVE: CVE-2007-0956, CVE-2007-0957, CVE-2007-1216

GLSA: 200704-02

CWE: 119