CVE-2018-18494

Impact:
Important
Public Date:
2018-12-11
CWE:
CWE-829
Bugzilla:
1658401: CVE-2018-18494 Mozilla: Same-origin policy violation using location attribute and performance.getEntries to steal cross-origin URLs

The MITRE CVE dictionary describes this issue as:

A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript location property to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

Find out more about CVE-2018-18494 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

In general, this flaw be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2019:0159 2019-01-24
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2019:0160 2019-01-24
Red Hat Enterprise Linux 6 (firefox) RHSA-2018:3831 2018-12-17
Red Hat Enterprise Linux 7 (firefox) RHSA-2018:3833 2018-12-17

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 8 thunderbird Not affected
Red Hat Enterprise Linux 8 firefox Not affected

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges James Lee of Kryptos Logic as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation