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vendor:
N/A
by:
SecurityFocus
7.5
CVSS
HIGH
Symlink Attack
59
CWE
Product Name: N/A
Affected Version From: N/A
Affected Version To: N/A
Patch Exists: NO
Related CWE: N/A
CPE: N/A
Metasploit: N/A
Other Scripts: N/A
Tags: N/A
CVSS Metrics: N/A
Nuclei References: N/A
Nuclei Metadata: N/A
Platforms Tested: N/A
2002

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.

Mitigation:

Ensure that the /tmp/tmpmsg file is not writable by any user other than root.
Source

Exploit-DB raw data:

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 >

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