Vulnerability Description
If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Transport Security (HSTS) will not be enabled for the connection. This vulnerability affects Firefox < 55.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 55.0 |
References
- http://www.securityfocus.com/bid/100374Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039124Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1074642ExploitIssue TrackingVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
- http://www.securityfocus.com/bid/100374Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039124Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1074642ExploitIssue TrackingVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
FAQ
What is CVE-2017-7789?
CVE-2017-7789 is a vulnerability with a CVSS score of 5.3 (MEDIUM). If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Transport Security (HSTS) will not be enabled for the connection...
How severe is CVE-2017-7789?
CVE-2017-7789 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7789?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.