CVE-2018-16947 json
An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2.
published 2018-09-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8735
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.6%
- EPSS 2.6% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known
Summary
An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. The backup tape controller (butc) process accepts incoming RPCs but does not require (or allow for) authentication of those RPCs. Handling those RPCs results in operations being performed with administrator credentials, including dumping/restoring volume contents and manipulating the backup database. For example, an unauthenticated attacker can replace any volume's content with arbitrary data.
Patch / fix
- openafs openafs 1.6.23, 1.8.2
- openafs Debian 13, Debian 12 1.8.2-1
debian advisories DEBIAN-CVE-2018-16947
- openafs openSUSE Tumbleweed 1.8.8-1.13
opensuse advisories openSUSE-SU-2024:11113-1
Exploit prediction
2.60% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
debian.org
/security/2018/dsa-4302
vendor-advisory, third-party-advisory
-
openafs.org
/pages/security/OPENAFS-SA-2018-001.txt
vendor-advisory
-
lists.debian.org
/debian-lts-announce/2018/09/msg00024.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2018-16947
- NVD CVE-2018-16947
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.