Vulnerability in Mozilla Firefox
CVE-2018-5152
WebExtensions with the appropriate permissions can attach content scripts to Mozilla sites such as accounts.firefox.com and listen to network traffic to the site through the "webRequest" API. For example, this allows for the interception of username and an encrypted password during login to Firefox Accounts. This issue does not expose synchronization traffic directly and is limited to the process of user login to the website and the data displayed to the user once logged in. This vulnerability affects Firefox < 60.
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.017 (74.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Mozilla Firefox — versions unspecified
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- security@mozilla.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@mozilla.org (Permissions Required, x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-5152?
- CVE-2018-5152 is a medium-severity vulnerability in Mozilla Firefox, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 6.5/10. Published 2018-06-11.
- How severe is CVE-2018-5152?
- Medium severity. CVSS v3 base score is 6.5 out of 10.