Strix
26.1K

CVE-2017-7814

UnknownEPSS 1.23%

Last modified

CVE-2017-7814 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatEnterprise Linux Desktop6.0
RedhatEnterprise Linux Desktop7.0
RedhatEnterprise Linux Server6.0
RedhatEnterprise Linux Server7.0
RedhatEnterprise Linux Server Aus7.4
RedhatEnterprise Linux Server Eus7.4
RedhatEnterprise Linux Server Eus7.5
RedhatEnterprise Linux Workstation6.0
RedhatEnterprise Linux Workstation7.0
MozillaFirefox< 52.4.0
MozillaFirefox< 56.0
MozillaThunderbird< 52.4.0
DebianDebian Linux7.0
DebianDebian Linux8.0
DebianDebian Linux9.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-7814?
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.
How severe is CVE-2017-7814?
Severity scoring for CVE-2017-7814 is pending analysis. The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.
How do I fix CVE-2017-7814?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7814?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST