Quick answers
- Is CVE-1999-1305 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-1999-1305 being exploited in the wild.
- How severe is CVE-1999-1305?
- High severity, with a CVSS score of 7.2, published 30 November 1994.
- Which products and versions are affected?
- Sco Unix 4.2 and earlier.
- Is there a fix for CVE-1999-1305?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-1999-1305 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-1999-1305?
- Check whether you run Sco Unix at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A privilege escalation vulnerability exists in the 'at' executable within SCO UNIX versions 4.2 and prior. The 'at' utility, which typically runs with elevated privileges to schedule jobs for various users, contains a flaw that allows a local authenticated user to bypass security restrictions. By exploiting this vulnerability, an attacker can execute arbitrary commands with root privileges. The attack requires local shell access but no special permissions. While specific technical details like buffer overflow or race condition are not explicitly detailed in the legacy advisory, the impact is a total compromise of system confidentiality, integrity, and availability.
Affected products
- SCO UNIX 4.2 and earlier
Timeline
- 1994-11-30: disclosed