CVE-2017-11104
Summary
| CVE | CVE-2017-11104 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-07-08 10:29:00 UTC |
| Updated | 2025-04-20 01:37:25 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Problem Types: CWE-20 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:M/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 10.0 | All | All | All |
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Application | Knot-dns | Knot Dns | 2.5.0 | All | All | All |
| Application | Knot-dns | Knot Dns | 2.5.1 | All | All | All |
| Application | Knot-dns | Knot Dns | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [security-announce] openSUSE-SU-2020:1086-1: moderate: Security update f | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Broken Link |
| [security-announce] openSUSE-SU-2020:1112-1: moderate: Security update f | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Broken Link |
| #865678 - knot: CVE-2017-11104: Improper TSIG validity period check can allow TSIG forgery - Debian Bug report logs | af854a3a-2127-422b-91ae-364da2661108 | bugs.debian.org | Issue Tracking, Third Party Advisory |
| [knot-dns-users] Knot DNS 2.5.2 and 2.4.5 releases | af854a3a-2127-422b-91ae-364da2661108 | lists.nic.cz | Broken Link, Mailing List, Patch, Third Party Advisory |
| [security-announce] openSUSE-SU-2020:1232-1: moderate: Security update f | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Broken Link |
| www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf | af854a3a-2127-422b-91ae-364da2661108 | www.synacktiv.ninja | Exploit, Mitigation, Patch, Third Party Advisory |
| Malformed Request | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Broken Link |
| [security-announce] openSUSE-SU-2020:1085-1: moderate: Security update f | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Broken Link |
| Debian -- Security Information -- DSA-3910-1 knot | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.