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CVE-2015-0816

5.0 · MEDIUM

Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 do not properly restrict resource: URLs, which makes it easier for remote attackers to execute arbitrary JavaS…

Published Apr 1, 2015mozillaCWE-264EPSS 66.94%

Overview

CVE-2015-0816 is a medium-severity vulnerability affecting mozilla firefox. It was published on April 1, 2015 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 do not properly restrict resource: URLs, which makes it easier for remote attackers to execute arbitrary JavaScript code with chrome privileges by leveraging the ability to bypass the Same Origin Policy, as demonstrated by the resource: URL associated with PDF.js.

Remediation

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. 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.

Affected products

VendorProductVersionsStatus
mozillafirefox0Affected
mozillathunderbird0Affected

References

Reflists.opensuse.org/opensuse-security-announce/2015-04/msg00003.htmlReflists.opensuse.org/opensuse-security-announce/2015-04/msg00006.htmlReflists.opensuse.org/opensuse-security-announce/2015-05/msg00012.htmlReflists.opensuse.org/opensuse-security-announce/2015-07/msg00031.htmlRefrhn.redhat.com/errata/RHSA-2015-0766.htmlRefrhn.redhat.com/errata/RHSA-2015-0771.htmlRefwww.debian.org/security/2015/dsa-3211Refwww.debian.org/security/2015/dsa-3212Refwww.mozilla.org/security/announce/2015/mfsa2015-33.htmlRefwww.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html

How CyberStrike helps

Frequently asked questions

What is CVE-2015-0816?

CVE-2015-0816 is a medium-severity vulnerability affecting mozilla firefox. It was published on April 1, 2015 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2015-0816?

This vulnerability has a CVSS 2.0 base score of 5.0, 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-2015-0816?

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. 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-2015-0816?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-0816 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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