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CVE-2015-0807

UnknownEPSS 1.18%

Last modified

CVE-2015-0807 is a vulnerability of currently unknown severity. The navigator.sendBeacon implementation in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 processes HTTP 30x status codes for redirects after a preflight request has occurred, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site, a similar issue to CVE-2014-8638.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

The navigator.sendBeacon implementation in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 processes HTTP 30x status codes for redirects after a preflight request has occurred, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site, a similar issue to CVE-2014-8638.

Metrics

EPSS Probability
1.18%

63.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MozillaFirefox<= 36.0.4
MozillaFirefox31.0
MozillaFirefox31.1.0
MozillaFirefox31.1.1
MozillaFirefox31.3.0
MozillaFirefox31.5.1
MozillaFirefox31.5.2
MozillaFirefox31.5.3
MozillaFirefox Esr31.1
MozillaFirefox Esr31.2
MozillaFirefox Esr31.3
MozillaFirefox Esr31.4
MozillaFirefox Esr31.5
MozillaThunderbird<= 31.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-0807?
The navigator.sendBeacon implementation in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 processes HTTP 30x status codes for redirects after a preflight request has occurred, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site, a similar issue to CVE-2014-8638.
How severe is CVE-2015-0807?
Severity scoring for CVE-2015-0807 is pending analysis. The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.
How do I fix CVE-2015-0807?
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-2015-0807?

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

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Source: NVD / NIST