CVE-2017-7814

moderate-risk
Published 2018-06-11

File downloads encoded with "blob:" and "data:" URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Do I need to act?

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0.32% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (14)

Affected Vendors

Debian Redhat Mozilla

References (24)

Third Party Advisory http://www.securityfocus.com/bid/101059
Third Party Advisory http://www.securitytracker.com/id/1039465
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2831
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2885
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1376036
Third Party Advisory https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
Third Party Advisory https://security.gentoo.org/glsa/201803-14
Third Party Advisory https://www.debian.org/security/2017/dsa-3987
Third Party Advisory https://www.debian.org/security/2017/dsa-4014
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-21/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-22/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-23/
Third Party Advisory http://www.securityfocus.com/bid/101059
Third Party Advisory http://www.securitytracker.com/id/1039465
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2831
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:2885
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1376036
Third Party Advisory https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
Third Party Advisory https://security.gentoo.org/glsa/201803-14
Third Party Advisory https://www.debian.org/security/2017/dsa-3987
and 4 more references
43
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 18/34 · Moderate