Skip to main content

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

CVE-2013-2029

Medium
6.3/10

Summary

nagios.upgrade_to_v3.sh, as distributed by Red Hat and possibly others for Nagios Core 3.4.4, 3.5.1, and earlier, allows local users to overwrite arbitrary files via a symlink attack on a temporary nagioscfg file with a predictable name in /tmp/.

  • MEDIUM
  • LOCAL
  • NONE
  • COMPLETE
  • NONE
  • 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