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6.9

no-ip2 lets local users replace arbitrary files

CVE-2008-5369 · published 17 years ago
Summary

The no-ip2 client version 2.1.7 can be tricked by a local user into overwriting any file using a symbolic link placed in /tmp/noip2. This means an insider could modify system files or install unwanted software. Update to a newer version or restrict write access to the temporary file to prevent the issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
no-ip no-ip2 2.1.7
cpe:2.3:a:no-ip:no-ip2:2.1.7:*:*:*:*:*:*:*
Original advisory text
noip2 in noip2 2.1.7 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/noip2 temporary file.
noip2 in noip2 2.1.7 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/noip2 temporary file.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
6.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-59Link Following
Timeline
Published8 Dec 2008
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2008-5369 · NVD
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