Improper Link Resolution Before File Access ('Link Following')
CVE-2008-0525
Summary
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.
- LOW
- LOCAL
- NONE
- PARTIAL
- PARTIAL
- PARTIAL
CWE-59 - Improper Link Resolution Before File Access
'Improper link resolution before file access' occurs when software accesses a file resource but fails to verify that the file isn't a link or shortcut to another file. An attacker can potentially gain access to arbitrary files and from there the impact can vary, depending on the application, from sensitive data exposure to remote code execution.
References
Advisory Timeline
- Published