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CVE-2016-2161

7.5 · HIGH

In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.

Published Jul 27, 2017CWE-823EPSS 20.95%

Overview

CVE-2016-2161 is a high-severity vulnerability. It was published on July 27, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.

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

Refrhn.redhat.com/errata/RHSA-2017-1415.htmlRefwww.debian.org/security/2017/dsa-3796Refwww.securityfocus.com/bid/95076Refwww.securitytracker.com/id/1037508Refaccess.redhat.com/errata/RHSA-2017:0906Refaccess.redhat.com/errata/RHSA-2017:1161Refaccess.redhat.com/errata/RHSA-2017:1413Refaccess.redhat.com/errata/RHSA-2017:1414Refh20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_usRefhttpd.apache.org/security/vulnerabilities_24.html#CVE-2016-2161

How CyberStrike helps

Frequently asked questions

What is CVE-2016-2161?

CVE-2016-2161 is a high-severity vulnerability. It was published on July 27, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2016-2161?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2016-2161?

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-2016-2161?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-2161 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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