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

CVE-2000-0972

Medium
5.5/10

Summary

HP-UX 11.00 crontab allows local users to read arbitrary files via the -e option by creating a symlink to the target file during the crontab session, quitting the session, and reading the error messages that crontab generates.

  • LOW
  • LOCAL
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • HIGH
  • NONE

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