J-Security Center

Title: Digital UNIX SUID/SGID Core File Vulnerability

Severity: MODERATE

Description:

Digital UNIX 4.0 will follow symlinks while writting core files if two
setuid programs dump core in sucession. The core file is owned by root
but with the user's groud id. The core file permissions are 0600. This
can be used to create root owned file anywhere in the filesystem.

Affected Products:

  • Digital UNIX 4.0.0
  • Digital UNIX 4.0.0B
  • Digital UNIX 4.0.0D

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