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

CVE-2008-5312

Medium
6.9/10

Summary

mailscanner 4.55.10 and other versions before 4.74.16-1 might allow local users to overwrite arbitrary files via a symlink attack on certain temporary files used by the (1) f-prot-autoupdate, (2) clamav-autoupdate, (3) panda-autoupdate.new, (4) trend-autoupdate.new, and (5) rav-autoupdate.new scripts in /etc/MailScanner/autoupdate/, a different vulnerability than CVE-2008-5140.

  • 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