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Last updated: 10/21/2014 9:40:40 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-1526

Original release date: 07/11/2011
Last revised: 01/18/2012
Source: US-CERT/NIST

Overview

ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.5 (MEDIUM) (AV:N/AC:L/Au:S/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: FEDORA
Name: FEDORA-2011-9080
External Source: SUSE
Name: openSUSE-SU-2012:0051
External Source: SUSE
Name: SUSE-SU-2012:0010
External Source: SUSE
Name: SUSE-SU-2012:0042
External Source: CONFIRM
Name: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-005.txt
Type: Advisory; Patch Information
External Source: REDHAT
Name: RHSA-2011:0920
External Source: BID
Name: 48571
Type: Patch Information
External Source: SUSE
Name: SUSE-SU-2012:0050
External Source: SREASON
Name: 8301
External Source: SUSE
Name: openSUSE-SU-2012:0019
External Source: BUGTRAQ
Name: 20110705 MITKRB5-SA-2011-005 FTP daemon fails to set effective group ID [CVE-2011-1526]
Type: Patch Information
External Source: OSVDB
Name: 73617
External Source: SECUNIA
Name: 45157
Type: Advisory
External Source: DEBIAN
Name: DSA-2283
External Source: XF
Name: kerberos-krb5appl-priv-esc(68398)
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=711419
Type: Patch Information
External Source: SUSE
Name: SUSE-SU-2012:0018
External Source: SUSE
Name: openSUSE-SU-2011:1169
External Source: SECUNIA
Name: 45145
Type: Advisory
External Source: MANDRIVA
Name: MDVSA-2011:117
External Source: FEDORA
Name: FEDORA-2011-9109

Vulnerable software and versions

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Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)