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CVE-2023-24068

7.8 · HIGH

Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to modify conversation attachments within the attachments.noindex directory.

Published Jan 23, 2023EPSS 0.37%

Overview

CVE-2023-24068 is a high-severity vulnerability. It was published on January 23, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to modify conversation attachments within the attachments.noindex directory. Client mechanisms fail to validate modifications of existing cached files, resulting in an attacker's ability to insert malicious code into pre-existing attachments or replace them completely. A threat actor can forward the existing attachment in the corresponding conversation to external groups, and the name and size of the file will not change, allowing the malware to masquerade as another file. NOTE: the vendor disputes the relevance of this finding because the product is not intended to protect against adversaries with this degree of local access.

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

Refjohnjhacking.com/blog/cve-2023-24068-cve-2023-24069/Refsignal.org/download/linuxRefsignal.org/download/macosRefsignal.org/en/download/windowsRefjohnjhacking.com/blog/cve-2023-24068-cve-2023-24069/Refsignal.org/download/linuxRefsignal.org/download/macosRefsignal.org/en/download/windows

How CyberStrike helps

Frequently asked questions

What is CVE-2023-24068?

CVE-2023-24068 is a high-severity vulnerability. It was published on January 23, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-24068?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-24068?

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-2023-24068?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-24068 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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