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

CVE-2008-4997

Medium
6.9/10

Summary

dfxml-invoice in datafreedom-perl 0.1.7 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/zenity temporary file. NOTE: the vendor disputes this vulnerability, stating that the vector is solely "an EXAMPLE used in the manpage.

  • 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