CVE-2018-12364

high-risk
Published 2018-10-18

NPAPI plugins, such as Adobe Flash, can send non-simple cross-origin requests, bypassing CORS by making a same-origin POST that does a 307 redirect to the target site. This allows for a malicious site to engage in cross-site request forgery (CSRF) attacks. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Do I need to act?

~
2.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (19)

Affected Vendors

Debian Redhat Mozilla Canonical

References (40)

Third Party Advisory http://www.securityfocus.com/bid/104560
Third Party Advisory http://www.securitytracker.com/id/1041193
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2112
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2113
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2251
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2252
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1436241
Mailing List https://lists.debian.org/debian-lts-announce/2018/06/msg00014.html
Mailing List https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html
Third Party Advisory https://security.gentoo.org/glsa/201810-01
Third Party Advisory https://security.gentoo.org/glsa/201811-13
Third Party Advisory https://usn.ubuntu.com/3705-1/
Third Party Advisory https://usn.ubuntu.com/3714-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4235
Third Party Advisory https://www.debian.org/security/2018/dsa-4244
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-15/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-16/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-17/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-18/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-19/
and 20 more references
55
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 19/34 · Moderate