post-auth arbitrary file write on cryptctl server

published 2018-03-01 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18206

cvss: 8.7; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 80%
public exploits: 0; none known

In cryptctl before version 2.0 a malicious server could send RPC requests that could overwrite files outside of the cryptctl key database.

Patch / fix

fixed in 1 distros 1

SUSE cryptctl 2.0

cryptctl SLES for SAP 12 SP2 1.2.6-5.3.11

suse advisories SUSE-SU-2017:1865-1

Exploit prediction

1.94% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.7	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
NVD	3.0	9.1	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD	2.0	8.5	AV:N/AC:M/Au:S/C:C/I:C/A:C

Affected products

SUSE cryptctl

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-20 Improper Input Validation

References

Sources

CVE List CVE-2017-9270
NVD CVE-2017-9270

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.

Summary