Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2018-12383

5.5 · MEDIUM

If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible.

Published Oct 18, 2018CWE-522EPSS 0.46%

Overview

CVE-2018-12383 is a medium-severity vulnerability. It was published on October 18, 2018 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Firefox < 62, Firefox ESR < 60.2.1, and Thunderbird < 60.2.1.

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

Refwww.securityfocus.com/bid/105276Refwww.securitytracker.com/id/1041610Refwww.securitytracker.com/id/1041701Refaccess.redhat.com/errata/RHSA-2018:2834Refaccess.redhat.com/errata/RHSA-2018:2835Refaccess.redhat.com/errata/RHSA-2018:3403Refaccess.redhat.com/errata/RHSA-2018:3458Refbugzilla.mozilla.org/show_bug.cgi?id=1475775Reflists.debian.org/debian-lts-announce/2018/11/msg00011.htmlRefsecurity.gentoo.org/glsa/201810-01

How CyberStrike helps

Frequently asked questions

What is CVE-2018-12383?

CVE-2018-12383 is a medium-severity vulnerability. It was published on October 18, 2018 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2018-12383?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-12383?

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-2018-12383?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-12383 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.

Related MEDIUM CVEs from 2018

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999