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.
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. |
Impact
An intruder can gain elevated privileges and execute commands. |
Solution
Apply the patches and upgrades provided by your vendor. |
Vendor Information
Caldera Affected
Updated: September 25, 2001
Status
Affected
Vendor Statement
http://www.caldera.com/support/security/advisories/CSSA-2001-033.0.txt
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Conectiva Affected
Updated: September 25, 2001
Status
Affected
Vendor Statement
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000425
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Debian Affected
Updated: September 25, 2001
Status
Affected
Vendor Statement
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- ----------------------------------------------------------------------------
Debian Security Advisory DSA 079-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
September 24, 2001
- ----------------------------------------------------------------------------
Package : uucp
Vulnerability : uucp uid/gid access
Problem-Type : local exploit
Debian-specific: no
zen-parse has found a problem with Taylor UUCP as distributed with
many GNU/Linux distributions. It was possible to make `uux' execute
`uucp' with malicious commandline arguments which gives an attacker
access to files owned by uid/gid uucp.
This problem has been fixed in version of 1.06.1-11potato1 for Debian
GNU/Linux 2.2 by using a patch that RedHat has provided.
We recommend that you upgrade your uucp package immediately.
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 2.2 alias potato
- ------------------------------------
Source archives:
http://security.debian.org/dists/stable/updates/main/source/uucp_1.06.1-11potato1.diff.gz
MD5 checksum: 4e2f02a4abd2ce86ffb0e154ef5d162b
http://security.debian.org/dists/stable/updates/main/source/uucp_1.06.1-11potato1.dsc
MD5 checksum: fd358e7e14f32ffa16cd3f2e6137b05c
http://security.debian.org/dists/stable/updates/main/source/uucp_1.06.1.orig.tar.gz
MD5 checksum: 390af5277915fcadbeee74d2f3038af9
Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/uucp_1.06.1-11potato1_alpha.deb
MD5 checksum: c1ad1038530a5ee1a6fb92fb90be287f
ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/uucp_1.06.1-11potato1_arm.deb
MD5 checksum: 5821d1b6b9bccfa7486183216ffc7dfa
Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/uucp_1.06.1-11potato1_i386.deb
MD5 checksum: deb9d76651686c2b0a2d51488e3cf0da
Motorola 680x0 architecture:
http://security.debian.org/dists/stable/updates/main/binary-m68k/uucp_1.06.1-11potato1_m68k.deb
MD5 checksum: 37f78dceb1e6c3b492246c888a744af7
PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/uucp_1.06.1-11potato1_powerpc.deb
MD5 checksum: e2a81774e4cd6c1eabbcf1c8fbf2e406
Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/uucp_1.06.1-11potato1_sparc.deb
MD5 checksum: 28148692a588b9b0c9b7598d0084fd2a
These files will be moved into the stable distribution on its next
revision.
- ----------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
FreeBSD Affected
Notified: September 24, 2001 Updated: October 09, 2001
Status
Affected
Vendor Statement
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:62.uucp.asc
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Hewlett Packard Affected
Notified: September 24, 2001 Updated: February 08, 2002
Status
Affected
Vendor Statement
HP Support Information Digests
===============================================================================
o Security Bulletin Digest Split
------------------------------
The security bulletins digest has been split into multiple digests
based on the operating system (HP-UX, MPE/iX, and HP Secure OS
Software for Linux). You will continue to receive all security
bulletin digests unless you choose to update your subscriptions.
To update your subscriptions, use your browser to access the
IT Resource Center on the World Wide Web at:
http://www.itresourcecenter.hp.com/
Under the Maintenance and Support Menu, click on the "more..." link.
Then use the 'login' link at the left side of the screen to login
using your IT Resource Center User ID and Password.
Under the notifications section (near the bottom of the page), select
Support Information Digests.
To subscribe or unsubscribe to a specific security bulletin digest,
select or unselect the checkbox beside it. Then click the
"Update Subscriptions" button at the bottom of the page.
o IT Resource Center World Wide Web Service
---------------------------------------------------
If you subscribed through the IT Resource Center and would
like to be REMOVED from this mailing list, access the
IT Resource Center on the World Wide Web at:
http://www.itresourcecenter.hp.com/
Login using your IT Resource Center User ID and Password.
Then select Support Information Digests (located under
Maintenance and Support). You may then unsubscribe from the
appropriate digest.
===============================================================================
Digest Name: daily HP Secure OS Software for Linux security bulletins digest
Created: Wed Jan 23 3:00:08 PST 2002
Table of Contents:
Document ID Title
--------------- -----------
HPSBTL0201-018 Updated uucp packages available
The documents are listed below.
-------------------------------------------------------------------------------
Document ID: HPSBTL0201-018
Date Loaded: 20020122
Title: Updated uucp packages available
TEXT
---------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY bulletin: #018
Originally issued: 22 January '02
---------------------------------------------------------------
The information in the following Security Bulletin should be acted
upon as soon as possible. Hewlett-Packard Company will not be
liable for any consequences to any customer resulting from the
customer's failure to fully implement instructions in this Security
Bulletin as soon as possible.
Because the vulnerability does not require a HP Secure OS
1.0 patch or re-packaging of the RPM affected by the bulletin, the
RPMs have not been produced or tested by Hewlett-Packard Company.
---------------------------------------------------------------
PROBLEM: Security flaw in the uuxqt utility of the uucp package.
PLATFORM: Any system running HP Secure OS software for Linux Release 1.0
DAMAGE: Local users can gain inappropriate privileges
SOLUTION: Apply the appropriate RPMs (see section B below)
MANUAL ACTIONS: None
AVAILABILITY: The RPMs are available now.
---------------------------------------------------------------
A. Background
Uuxqt is part of a remote command execution facility within
uucp. A flaw exists that allows local users to gain inappropriate
privileges. The uucp package is not included in the default
installation of HP Secure OS Software for Linux release 1.0.
B. Fixing the problem
Hewlett-Packard Company recommends that customers download the RPMs
listed in the following Red Hat Security Advisory:
2002-01-15 uucp (RHSA-2001-165) The uuxqt utility can be used to
execute arbitrary commands as uucp.uucp
http://www.redhat.com/support/errata/RHSA-2001-165.html
To install the security bulletin RPMs, use the following sequence
of commands:
1. If you use the tripwire product, we recommend that you run a
a consistency check and fix any violations before installing
the security bulletin RPM.
tripwire --check --interactive
2. Install the bulletin RPM from the root account.
rpm -F <bulletin RPM name>
3. Update the tripwire database
tripwire --check --interactive
NOTE:
The rpm -q <package name> command can be used to determine if the
product is installed. Hewlett-Packard Company recommends applying the
Security Bulletin fixes to installed packages only. The -F option
to the RPM installer will only apply the fix if the package is
currently installed on the system. Dependent RPMs can be found by
using the "Find Latest RPMs" search facility at
http://www.redhat.com/apps/download. To find the latest dependent
RPM enter the RPM's name in the "By Keyword" box.
C. To subscribe to automatically receive future HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:
Use your browser to access the HP IT Resource Center page
at:
http://itrc.hp.com
Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login. Remember to
save the User ID assigned to you, and your password. This
login provides access to many useful areas of the ITRC.
In the leftmost frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".
To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.
D. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server. You may also get the security-alert PGP key by
sending a message with a -subject- (not body) of
'get key' (no quotes) to security-alert@hp.com.
Permission is granted for copying and circulating this
bulletin to Hewlett-Packard Company (HP) customers (or the Internet
community) for the purpose of alerting them to problems,
if and only if, the bulletin is not edited or changed in
any way, is attributed to HP, and provided such reproduction
and/or distribution is performed for non-commercial purposes.
Any other use of this information is prohibited. HP is not
liable for any misuse of this information by any third party.
---------------------------------------------------------------
-----End of Document ID: HPSBTL0201-018--------------------------------------
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
MandrakeSoft Affected
Updated: September 25, 2001
Status
Affected
Vendor Statement
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
________________________________________________________________________
Mandrake Linux Security Update Advisory
________________________________________________________________________
Package name: uucp
Date: September 21st, 2001
Advisory ID: MDKSA-2001:078
Affected versions: 7.1, 7.2, 8.0, Corporate Server 1.0.1
________________________________________________________________________
Problem Description:
Zen Parse discovered that an argument handling problem that exists in
the uucp package can allow a local attacker to gain access to the uucp
user or group.
________________________________________________________________________
References:
http://www.securityfocus.com/archive/1/212892
________________________________________________________________________
Please verify the update prior to upgrading to ensure the integrity of
the downloaded package. You can do this with the command:
rpm --checksig package.rpm
You can get the GPG public key of the Mandrake Linux Security Team at
http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.
Linux-Mandrake 7.1:
fa65ca8883349b9be0e6cf7db7dea76b 7.1/RPMS/uucp-1.06.1-14.1mdk.i586.rpm
e28726519e93e1980d40dab2f06483af 7.1/SRPMS/uucp-1.06.1-14.1mdk.src.rpm
Linux-Mandrake 7.2:
63dec090a832b711ff3a05577de6e375 7.2/RPMS/uucp-1.06.1-17.1mdk.i586.rpm
5e0b73597aaf0b0c731919e0e2608e2b 7.2/SRPMS/uucp-1.06.1-17.1mdk.src.rpm
Mandrake Linux 8.0:
1d285f9a496ae17aac3a43faaf93046a 8.0/RPMS/uucp-1.06.1-18.1mdk.i586.rpm
231f4436c3d4ba45190b6f00430a8b0d 8.0/SRPMS/uucp-1.06.1-18.1mdk.src.rpm
Mandrake Linux 8.0 (PPC):
9634b394fe43ab951969ab5088a071f3 ppc/8.0/RPMS/uucp-1.06.1-18.1mdk.ppc.rpm
519859d31a9a04d84d8090a6a4885431 ppc/8.0/SRPMS/uucp-1.06.1-18.1mdk.src.rpm
Corporate Server 1.0.1:
fa65ca8883349b9be0e6cf7db7dea76b 1.0.1/RPMS/uucp-1.06.1-14.1mdk.i586.rpm
e28726519e93e1980d40dab2f06483af 1.0.1/SRPMS/uucp-1.06.1-14.1mdk.src.rpm
________________________________________________________________________
Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
________________________________________________________________________
To upgrade automatically, use MandrakeUpdate.
If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".
You can download the updates directly from one of the mirror sites
listed at:
http://www.linux-mandrake.com/en/ftp.php3.
Updated packages are available in the "updates/[ver]/RPMS/" directory.
For example, if you are looking for an updated RPM package for
Mandrake Linux 8.0, look for it in "updates/8.0/RPMS/". Updated source
RPMs are available as well, but you generally do not need to download
them.
Please be aware that sometimes it takes the mirrors a few hours to
update.
You can view other security advisories for Mandrake Linux at:
http://www.linux-mandrake.com/en/security/
If you want to report vulnerabilities, please contact
security@linux-mandrake.com
________________________________________________________________________
Mandrake Linux has two security-related mailing list services that
anyone can subscribe to:
security-announce@linux-mandrake.com
Mandrake Linux's security announcements mailing list. Only
announcements are sent to this list and it is read-only.
security-discuss@linux-mandrake.com
Mandrake Linux's security discussion mailing list. This list is open
to anyone to discuss Mandrake Linux security specifically and Linux
security in general.
To subscribe to either list, send a message to
sympa@linux-mandrake.com
with "subscribe [listname]" in the body of the message.
To remove yourself from either list, send a message to
sympa@linux-mandrake.com
with "unsubscribe [listname]" in the body of the message.
To get more information on either list, send a message to
sympa@linux-mandrake.com
with "info [listname]" in the body of the message.
Optionally, you can use the web interface to subscribe to or unsubscribe
from either list:
http://www.linux-mandrake.com/en/flists.php3#security
________________________________________________________________________
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security@linux-mandrake.com>
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Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
OpenBSD Affected
Updated: September 25, 2001
Status
Affected
Vendor Statement
http://www.openbsd.org/errata.html#uucp
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Red Hat Affected
Notified: September 25, 2001 Updated: January 18, 2002
Status
Affected
Vendor Statement
http://www.redhat.com/support/errata/RHSA-2001-165.html
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
SuSE Affected
Updated: January 17, 2002
Status
Affected
Vendor Statement
http://www.suse.de/de/support/security/2001_038_uucp_txt.txt
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Apple Not Affected
Updated: September 26, 2001
Status
Not Affected
Vendor Statement
Mac OS X is not vulnerable to the UUCP problems described in this advisory.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
IBM Not Affected
Notified: September 25, 2001 Updated: January 17, 2002
Status
Not Affected
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | ||
| Temporal | ||
| Environmental |
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
Acknowledgements
This vulnerability was discovered by zen-parse.
This document was written by Jason Rafail.
Other Information
| CVE IDs: | CVE-2001-0873 |
| Severity Metric: | 21.38 |
| Date Public: | 2001-09-08 |
| Date First Published: | 2001-09-25 |
| Date Last Updated: | 2002-02-08 16:09 UTC |
| Document Revision: | 10 |