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CVE-2023-34415

6.1 · MEDIUM

When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redi…

Published Jun 19, 2023CWE-601EPSS 0.41%

Overview

CVE-2023-34415 is a medium-severity vulnerability. It was published on June 19, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirect. This bypassed the site-isolation protections against Spectre-like attacks on sites that host an "open redirect". Firefox no longer follows HTTP redirects to data: URLs. This vulnerability affects Firefox < 114.

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

Refbugzilla.mozilla.org/show_bug.cgi?id=1811999Refsecurity.gentoo.org/glsa/202401-10Refwww.mozilla.org/security/advisories/mfsa2023-20/Refbugzilla.mozilla.org/show_bug.cgi?id=1811999Refsecurity.gentoo.org/glsa/202401-10Refwww.mozilla.org/security/advisories/mfsa2023-20/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-34415?

CVE-2023-34415 is a medium-severity vulnerability. It was published on June 19, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2023-34415?

This vulnerability has a CVSS 3.1 base score of 6.1, 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-2023-34415?

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-2023-34415?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-34415 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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