PatchLink Update logtrimmer symlink
| patchlinkupdate-logtrimmer-symlink (39956) |  Medium Risk |
Description:
PatchLink Update Client could allow a local attacker to launch a symlink attack. The patchlink.tmp file is created with insecure permissions. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to other files on the system, which would allow the attacker to truncate arbitrary files on the system with elevated privileges.
*CVSS:
| Base Score: | 3.3 |
| Access Vector: | Local |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 2.9 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
File Manipulation
Remedy:
Refer to Novell Security Alert Document ID: 3908994 for patch, upgrade, or suggested workaround information. See References.
References:
- BugTraq Mailing List, Fri Jan 25 2008 - 14:29:30 CST : Two vulnerabilities for PatchLink Update Client for Unix..
- Lumension Security Web site: PatchLink Update.
- Novell Security Alert Document ID: 3908994: Security Update for ZPM Update Agent for Linux/Unix/Mac 6.x.
- BID-27458: PatchLink Update Multiple Insecure Temporary File Creation Vulnerabilities
- CVE-2008-0525: PatchLink Update client for Unix, as used by Novell ZENworks Patch Management Update Agent for Linux/Unix/Mac (LUM) 6.2094 through 6.4102 and other products, allows local users to (1) truncate arbitrary files via a symlink attack on the /tmp/patchlink.tmp file used by the logtrimmer script, and (2) execute arbitrary code via a symlink attack on the /tmp/plshutdown file used by the rebootTask script.
- SA28657: Novell ZENworks Patch Management Insecure Temporary Files
- SA28665: PatchLink Update Client for Unix Insecure Temporary Files
- SECTRACK ID: 1019272: PatchLink Update Temporary File Symlink Flaw in logtrimmer Lets Local Users Gain Elevated Privileges
- VUPEN/ADV-2008-0426: Novell ZENworks Patch Management Multiple Insecure Temporary Files
Platforms Affected:
- Lumension PatchLink Update Server
- Novell ZENworks Patch Management Server 6.2
- Novell ZENworks Patch Management Server 6.3
- Novell ZENworks Patch Management Server 6.4
Reported:
Jan 25, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.