Quick answers
- Is CVE-1999-0170 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-1999-0170 being exploited in the wild.
- How severe is CVE-1999-0170?
- High severity, with a CVSS score of 7.5, published 1 January 1997.
- Which products and versions are affected?
- Digital Equipment Corporation Ultrix; Digital Equipment Corporation OSF/1 (Digital UNIX).
- Is there a fix for CVE-1999-0170?
- 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-1999-0170 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-1999-0170?
- Check whether you run Digital Ultrix. 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
This vulnerability involves a failure in the access control mechanism of the Network File System (NFS) implementation in Digital Equipment Corporation's Ultrix and OSF/1 (Digital UNIX) operating systems. The root cause is an improper validation of the export access list, which allows remote attackers to bypass restrictions and successfully mount exported file systems. An attacker with network access to the NFS server can exploit this without authentication to gain unauthorized read and write access to the underlying data. This bypasses the intended security policy defined in the system's export configuration.
Affected products
- Digital Equipment Corporation Ultrix
- Digital Equipment Corporation OSF/1 (Digital UNIX)
Timeline
- 1997-01-01: disclosed