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CVE-2020-17525

7.5 · HIGH

Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing reposit…

Published Mar 17, 2021CWE-476EPSS 40.08%

Overview

CVE-2020-17525 is a high-severity vulnerability. It was published on March 17, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 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

Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7

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

Reflists.debian.org/debian-lts-announce/2021/05/msg00000.htmlRefsubversion.apache.org/security/CVE-2020-17525-advisory.txtReflists.debian.org/debian-lts-announce/2021/05/msg00000.htmlRefsubversion.apache.org/security/CVE-2020-17525-advisory.txt

How CyberStrike helps

Frequently asked questions

What is CVE-2020-17525?

CVE-2020-17525 is a high-severity vulnerability. It was published on March 17, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-17525?

This vulnerability has a CVSS 3.1 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-2020-17525?

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-2020-17525?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-17525 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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