CVE-2017-11104
knot - security update
5.9
MEDIUM
CVSS 3.1
EPSS 2.7%
Description
Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.
How to fix CVE-2017-11104
To remediate CVE-2017-11104, upgrade the affected package to a fixed version below.
- —upgrade to 2.5.3-1 or later
- —upgrade to 1.6.0-1+deb8u1 or later
Is CVE-2017-11104 being exploited?
Low — EPSS is 2.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.5.3-1
- from 0, < 1.6.0-1+deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |