Medium severity · published Jul 8, 2017
CVE-2017-11104
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…
5.9
CVSS
2.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
KD
Knot Dns · Knot-dns
through 2.4.4; 2.5.0; 2.5.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-11104
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-11104
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html
Third Party Advisory
http://www.debian.org/security/2017/dsa-3910
Broken Link
http://www.securityfocus.com/bid/99598
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