Slackware Linux 3.4 - 'netconfig' Temporary File



EKU-ID: 24709 CVE: OSVDB-82887 OSVDB-ID:
Author: neonhaze Published: 1998-04-06 Verified: Verified
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source: https://www.securityfocus.com/bid/81/info

netconfig creates the file /tmp/tmpmsg insecurely and follows symbolic links. An attacker can create a symbolic link from /tmp/tmpmsg to any file and wait for root to run the program. This will clober the target file. The file created has permissions -rw-r--r--.

$ ln -s /tmp/tmpmsg /etc/passwd
< wait for root to run netconfig >