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CVE-2019-6110

6.8 · MEDIUM

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI…

Published Jan 31, 2019CWE-838EPSS 24.90%

Overview

CVE-2019-6110 is a medium-severity vulnerability. It was published on January 31, 2019 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.

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

Refcert-portal.siemens.com/productcert/pdf/ssa-412672.pdfRefcvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.cRefcvsweb.openbsd.org/src/usr.bin/ssh/scp.cRefsecurity.gentoo.org/glsa/201903-16Refsecurity.netapp.com/advisory/ntap-20190213-0001/Refsintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtRefwww.exploit-db.com/exploits/46193/Refcert-portal.siemens.com/productcert/pdf/ssa-412672.pdfRefcvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.cRefcvsweb.openbsd.org/src/usr.bin/ssh/scp.c

How CyberStrike helps

Frequently asked questions

What is CVE-2019-6110?

CVE-2019-6110 is a medium-severity vulnerability. It was published on January 31, 2019 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2019-6110?

This vulnerability has a CVSS 3.1 base score of 6.8, 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-2019-6110?

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-2019-6110?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-6110 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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