mm tmpfile symlink attack
| mm-tmpfile-symlink (9719) |  Medium Risk |
Description:
OSSP mm is vulnerable to a race condition in the temporary file creation that could allow a local attacker to launch a symlink attack. A local attacker could exploit this vulnerability by creating symbolic links to overwrite or create new files on the system with root privileges, if shell access to the Apache run-time user, typically as a "nobody" user, is already obtained.
Consequences:
File Manipulation
Remedy:
Upgrade to the latest version of mm (1.2.1 or later) as listed in the OSSP. Unix Software Technologies Web site. See References.
For OpenPKG:
Upgrade to the latest version of mm, as listed below. Refer to OpenPKG Security Advisory OpenPKG-SA-2002.007 for more information. See References.
OpenPKG 1.0: 1.1.3-1.0.1 or later
OpenPKG CURRENT: 1.2.0 or later
For Mandrake Linux:
Upgrade to the latest mm package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2002:045 : mm for more information. See References.
Linux-Mandrake 7.1, 7.2, Corporate Server 1.0.1 and Single Network Firewall 7.2: 1.1.3-8.5mdk or later
Mandrake Linux 8.0 and 8.0 (PPC): 1.1.3-8.4mdk or later
Mandrake Linux 8.1 and 8.1 (IA64): 1.1.3-9.1mdk or later
Mandrake Linux 8.2 and 8.2 (PPC): 1.1.3-9.1mdk or later
For Debian GNU/Linux:
Upgrade to the latest mm package, as listed below. Refer to DSA 137-1 for more information. See References.
Debian GNU/Linux 2.2 (potato): 1.0.11-1.2 or later
Debian GNU/Linux 3.0 (woody): 1.1.3-6.1 or later
For Caldera OpenLinux 3.1 and 3.1.1 Workstation and Server:
Upgrade to the latest mm package (1.1.3-6 or later), as listed in Caldera Systems, Inc. Security Advisory CSSA-2002-032.0. See References.
For Red Hat Linux 7.0, 7.1 7.2, and 7.3:
Upgrade to the latest mm package (1.1.3-8 or later), as listed in RHSA-2002:153-07. See References.
For SuSE Linux:
Upgrade to the latest mm package, as listed below. Refer to SuSE Security Announcement SuSE-SA:2002:028 for more information. See References.
SuSE Linux: 7.2 and 8.0 (Intel): 1.1.3-290 or later
SuSE Linux: 7.3 (Intel): 1.1.3-292 or later
SuSE Linux: 7.1 (Intel): 1.1.3-293 or later
SuSE Linux: 7.0 (Intel): 1.1.1-61 or later
SuSE Linux: 7.3 (Sparc): 1.1.3-163 or later
SuSE Linux: 7.1 (AXP): 1.1.3-165 or later
SuSE Linux: 7.3 (Power PC): 1.1.3-202 or later
SuSE Linux: 7.1 (Power PC): 1.1.3-203 or later
SuSE Linux: 7.0 (Power PC): 1.1.1-73 or later
For FreeBSD Ports Collection:
Upgrade to the latest ports collection, as listed in FreeBSD Security Notice FreeBSD-SN-02:05. See References.
For HP-UX 11.00, 11.11, 11.20, and 11.22 :
Upgrade to the version of OpenSSL, as listed in Hewlett-Packard Company Security Bulletin HPSBUX0208-217. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Caldera International, Inc. Security Advisory CSSA-2002-032.0: temporary file races in libmm.
- CIAC Information Bulletin 0-171: Hewlett Packard OpenSSL Potential Vulnerabilities.
- FreeBSD Security Notice FreeBSD-SN-02:05 : security issues in ports.
- OSSP. Unix Software Technologies Web site: OSSP - OSSP mm.
- BID-5352: MM Shared Memory Library Temporary File Privilege Escalation Vulnerability
- CVE-2002-0658: OSSP mm library (libmm) before 1.2.0 allows the local Apache user to gain privileges via temporary files, possibly via a symbolic link attack.
- DSA-137: mm -- insecure temporary files
- MDKSA-2002:045: Updated mm packages fix temporary file vulnerability
- OpenPKG-SA-2002.007: OSSP mm
- RHSA-2002-153: Updated mm packages fix temporary file handling
- RHSA-2002-154: mm security update
- RHSA-2003-158: Updated mm packages fix temporary file handling
Platforms Affected:
- Debian Debian Linux 2.2
- Debian Debian Linux 3.0
- FreeBSD FreeBSD Ports Collection
- HP HP-UX 11.00
- HP HP-UX 11.11
- HP HP-UX 11.20
- HP HP-UX 11.22
- MandrakeSoft Mandrake Linux 7.1
- MandrakeSoft Mandrake Linux 7.2
- MandrakeSoft Mandrake Linux 8.0 PPC
- MandrakeSoft Mandrake Linux 8.0
- MandrakeSoft Mandrake Linux 8.1
- MandrakeSoft Mandrake Linux 8.1 IA64
- MandrakeSoft Mandrake Linux 8.2 PPC
- MandrakeSoft Mandrake Linux 8.2
- MandrakeSoft Mandrake Linux Corporate Server 1.0.1
- MandrakeSoft Mandrake Single Network Firewall 7.2
- OpenPKG OpenPKG 1.0
- OpenPKG OpenPKG CURRENT
- OSSP mm prior to 1.2.0
- RedHat Enterprise Linux 2.1 AS
- RedHat Linux 7
- RedHat Linux 7.1
- RedHat Linux 7.1 for iSeries
- RedHat Linux 7.1 for pSeries
- RedHat Linux 7.2
- RedHat Linux 7.3
Reported:
Jul 29, 2002
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