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Vulnerability Note VU#798263

Taylor UUCP Package fails to properly filter command line arguments

Overview

Several Linux/Unix systems ship with a utility package called Taylor UUCP. A component of the UUCP package, uuxqt, fails to properly filter arguments from the commands sent to it. This can allow an intruder to gain elevated privileges and execute commands with the privileges of uucp, usually root.

I. Description

A component of the UUCP package, uuxqt, is a daemon that executes commands requested by uux either from the local system or from remote systems. Before executing the command, uuxqt is supposed to filter dangerous command arguments. It fails to properly filter command line arguments that are specified in their long format. This can allow an intruder to gain elevated privileges and execute commands.

II. Impact

An intruder can gain elevated privileges and execute commands.

III. Solution

Apply the patches and upgrades provided by your vendor.

Systems Affected

VendorStatusDate NotifiedDate Updated
AppleNot Vulnerable26-Sep-2001
CalderaVulnerable25-Sep-2001
ConectivaVulnerable25-Sep-2001
DebianVulnerable25-Sep-2001
FreeBSDVulnerable9-Oct-2001
Hewlett PackardVulnerable8-Feb-2002
IBMNot Vulnerable17-Jan-2002
MandrakeSoftVulnerable25-Sep-2001
OpenBSDVulnerable25-Sep-2001
Red HatVulnerable18-Jan-2002
SuSEVulnerable17-Jan-2002

References

http://www.securityfocus.com/bid/3312
http://www.redhat.com/support/errata/RHSA-2001-165.html
http://www.suse.de/de/support/security/2001_038_uucp_txt.txt
http://www.caldera.com/support/security/advisories/CSSA-2001-033.0.txt
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-078.php3?dis=8.0
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000425
http://archives.neohapsis.com/archives/bugtraq/2001-09/0053.html

Credit

This vulnerability was discovered by zen-parse.

This document was written by Jason Rafail.

Other Information

Date Public:2001-09-08
Date First Published:2001-09-25
Date Last Updated:2002-02-08
CERT Advisory: 
CVE-ID(s):CAN-2001-0873
NVD-ID(s):CAN-2001-0873
US-CERT Technical Alerts: 
Severity Metric:21.37
Document Revision:10

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Copyright 2001 Carnegie Mellon University
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