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CVE-2019-10743

5.5 · MEDIUM

All versions of archiver allow attacker to perform a Zip Slip attack via the "unarchive" functions.

Published Oct 29, 2019CWE-22EPSS 6.35%

Overview

CVE-2019-10743 is a medium-severity vulnerability. It was published on October 29, 2019 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

All versions of archiver allow attacker to perform a Zip Slip attack via the "unarchive" functions. It is exploited using a specially crafted zip archive, that holds path traversal filenames. When exploited, a filename in a malicious archive is concatenated to the target extraction directory, which results in the final path ending up outside of the target folder. For instance, a zip may hold a file with a "../../file.exe" location and thus break out of the target folder. If an executable or a configuration file is overwritten with a file containing malicious code, the problem can turn into an arbitrary code execution issue quite easily.

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

GitHubgithub.com/mholt/archiver/pull/169Refsnyk.io/research/zip-slip-vulnerabilityRefsnyk.io/vuln/SNYK-GOLANG-GITHUBCOMMHOLTARCHIVERCMDARC-174728%2CRefsnyk.io/vuln/SNYK-GOLANG-GITHUBCOMMHOLTARCHIVERCMDARC-174728GitHubgithub.com/mholt/archiver/pull/169Refsnyk.io/research/zip-slip-vulnerabilityRefsnyk.io/vuln/SNYK-GOLANG-GITHUBCOMMHOLTARCHIVERCMDARC-174728%2C

How CyberStrike helps

Frequently asked questions

What is CVE-2019-10743?

CVE-2019-10743 is a medium-severity vulnerability. It was published on October 29, 2019 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2019-10743?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-10743?

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-2019-10743?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-10743 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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