CVE-2018-16947
9.8
CRITICAL · CVSS 3.0 · EPSS 2.6% (pctl 85)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.6% — more likely to be exploited than 85% of all CVEs |
| Weakness | CWE-287 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-09-12 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| openafs | openafs |
References
- http://openafs.org/pages/security/OPENAFS-SA-2018-001.txt
- https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html
- https://www.debian.org/security/2018/dsa-4302
- http://openafs.org/pages/security/OPENAFS-SA-2018-001.txt
- https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html
- https://www.debian.org/security/2018/dsa-4302
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