(Mandrake Issues Fix) Mtools 'mformat' Utility Lets Local Users Create Arbitrary Root-Owned Files
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SecurityTracker Alert ID: 1009217 |
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SecurityTracker URL: http://securitytracker.com/id/1009217
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Feb 26 2004
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Impact:
Disclosure of system information, Modification of system information, Root access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 3.9.9
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Description:
A vulnerability was reported in mtools in the mformat program. A local user may be able to gain root privileges.
It is reported that when the mformat program is installed with set user id (setuid) root user privileges, a local user can invoke mformat to create any file with 0666 permissions (globally writable).
It is also reported that the application does not drop privileges when reading local configuration files, so a local user may be able to view arbitrary files on the system.
According to the report, the application is installed with setuid privileges on at least some platforms.
Sebastian Krahmer is credited with reporting this flaw.
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Impact:
A local user can gain root privileges on the target system.
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Solution:
Mandrake has issued a fix.
Mandrake Linux 9.2:
92f97fa2f63b3bcb1f657c919152381e 9.2/RPMS/mtools-3.9.9-2.1.92mdk.i586.rpm
4346ec1081a440772fa3f40f9d07632d 9.2/SRPMS/mtools-3.9.9-2.1.92mdk.src.rpm
Mandrake Linux 9.2/AMD64:
11cde05b045fcf389c276199589c051d amd64/9.2/RPMS/mtools-3.9.9-2.1.92mdk.amd64.rpm
4346ec1081a440772fa3f40f9d07632d amd64/9.2/SRPMS/mtools-3.9.9-2.1.92mdk.src.rpm
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Vendor URL: mtools.linux.lu (Links to External Site)
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Cause:
Access control error
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Underlying OS:
Linux (Mandriva/Mandrake)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: 25 Feb 2004 16:06:40 -0000
Subject: MDKSA-2004:016 - Updated mtools packages fix local root vulnerability
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
_______________________________________________________________________
Mandrake Linux Security Update Advisory
_______________________________________________________________________
Package name: mtools
Advisory ID: MDKSA-2004:016
Date: February 25th, 2004
Affected versions: 9.2
______________________________________________________________________
Problem Description:
Sebastian Krahmer found that the mformat program, when installed
suid root, can create any file with 0666 permissions as root, and that
it also does not drop privileges when reading local configuration
files.
The updated packages remove the suid bit from mformat.
______________________________________________________________________
Updated Packages:
Mandrake Linux 9.2:
92f97fa2f63b3bcb1f657c919152381e 9.2/RPMS/mtools-3.9.9-2.1.92mdk.i586.rpm
4346ec1081a440772fa3f40f9d07632d 9.2/SRPMS/mtools-3.9.9-2.1.92mdk.src.rpm
Mandrake Linux 9.2/AMD64:
11cde05b045fcf389c276199589c051d amd64/9.2/RPMS/mtools-3.9.9-2.1.92mdk.amd64.rpm
4346ec1081a440772fa3f40f9d07632d amd64/9.2/SRPMS/mtools-3.9.9-2.1.92mdk.src.rpm
_______________________________________________________________________
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
A list of FTP mirrors can be obtained from:
http://www.mandrakesecure.net/en/ftp.php
All packages are signed by MandrakeSoft for security. You can obtain
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gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98
Please be aware that sometimes it takes the mirrors a few hours to
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If you want to report vulnerabilities, please contact
security_linux-mandrake.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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