Joined: 12 May 2004
|Posted: Mon May 23, 2005 8:53 pm Post subject: [ GLSA 200505-18 ] Net-SNMP: fixproc insecure temporary file
|Gentoo Linux Security Advisory
Title: Net-SNMP: fixproc insecure temporary file creation (GLSA 200505-18)
Date: May 23, 2005
Updated: May 22, 2006
Net-SNMP creates temporary files in an insecure manner, possibly allowing the execution of arbitrary code.
Net-SNMP is a suite of applications used to implement the Simple Network Management Protocol.
Vulnerable: < 5.2.1-r1
Unaffected: >= 5.2.1-r1
Architectures: All supported architectures
The fixproc application of Net-SNMP creates temporary files with predictable filenames.
A malicious local attacker could exploit a race condition to change the content of the temporary files before they are executed by fixproc, possibly leading to the execution of arbitrary code. A local attacker could also create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixproc is executed, this would result in the file being overwritten.
There is no known workaround at this time.
All Net-SNMP users should upgrade to the latest available version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/net-snmp-5.2.1-r1"
Last edited by GLSA on Sun Oct 05, 2008 4:17 am; edited 8 times in total