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Improper Link Resolution Before File Access ('Link Following')

CVE-2008-4985

Medium
6.9/10

Summary

vdrleaktest in Video Disk Recorder (aka vdr-dbg or vdr) 1.6.0 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/memleaktest.log temporary file.

  • MEDIUM
  • LOCAL
  • NONE
  • COMPLETE
  • COMPLETE
  • COMPLETE

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