CVE-2017-11104
MEDIUM
5.9
CVSS Score
Published: July 8, 2017 at 10:00 AM UTC
Updated: June 17, 2026 at 01:01 AM UTC
2 products affected across 2 vendorsDebian LinuxKnot DNS
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Severity
MEDIUM5.9
Exploit prediction
EPSS 3%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html
- http://www.debian.org/security/2017/dsa-3910
References (9)
Vendor Advisoryx_refsource_SUSEBroken Link
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.htmlVendor Advisoryx_refsource_SUSEBroken Link
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.htmlVendor Advisoryx_refsource_SUSEBroken Link
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.htmlVendor Advisoryx_refsource_SUSEBroken Link
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.htmlVendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
http://www.debian.org/security/2017/dsa-3910x_refsource_MISCExploitMitigationPatchThird Party Advisory
Source: [email protected]
http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdfx_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugs.debian.org/865678CVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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