CVE-2018-12395

Summary

By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox ESRunspecified < 60.3affected
MozillaFirefoxunspecified < 63affected

Weaknesses

  • WebExtension bypass of domain restrictions through header rewriting

ADP Enrichment

CVE Program Container

Additional References

References