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

CVE-2007-1027

Medium
4.4/10

Summary

Certain setuid DB2 binaries in IBM DB2 before 9 Fix Pack 2 for Linux and Unix allow local users to overwrite arbitrary files via a symlink attack on the DB2DIAG.LOG temporary file.

  • MEDIUM
  • LOCAL
  • NONE
  • PARTIAL
  • PARTIAL
  • PARTIAL

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