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CVE-2017-3142

5.3 · MEDIUM

An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name may be able to circumvent TSIG authentication of AXFR requests via…

Published Jan 16, 2019CWE-20EPSS 5.40%

Overview

CVE-2017-3142 is a medium-severity vulnerability. It was published on January 16, 2019 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name may be able to circumvent TSIG authentication of AXFR requests via a carefully constructed request packet. A server that relies solely on TSIG keys for protection with no other ACL protection could be manipulated into: providing an AXFR of a zone to an unauthorized recipient or accepting bogus NOTIFY packets. Affects BIND 9.4.0->9.8.8, 9.9.0->9.9.10-P1, 9.10.0->9.10.5-P1, 9.11.0->9.11.1-P1, 9.9.3-S1->9.9.10-S2, 9.10.5-S1->9.10.5-S2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/99339Refwww.securitytracker.com/id/1038809Refaccess.redhat.com/errata/RHSA-2017:1679Refaccess.redhat.com/errata/RHSA-2017:1680Refh20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03772en_usRefkb.isc.org/docs/aa-01504Refsecurity.netapp.com/advisory/ntap-20190830-0003/Refwww.debian.org/security/2017/dsa-3904Refwww.securityfocus.com/bid/99339Refwww.securitytracker.com/id/1038809

How CyberStrike helps

Frequently asked questions

What is CVE-2017-3142?

CVE-2017-3142 is a medium-severity vulnerability. It was published on January 16, 2019 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

How severe is CVE-2017-3142?

This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-3142?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-3142?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-3142 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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