If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge…
If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability affects Firefox < 140 and Thunderbird < 140.
The product does not validate, or incorrectly validates, a certificate.
https://cwe.mitre.org/data/definitions/295.html →Open in CWE collection →The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.
https://cwe.mitre.org/data/definitions/358.html →Open in CWE collection →An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
https://capec.mitre.org/data/definitions/459.html →Open in CAPEC collection →An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.
https://capec.mitre.org/data/definitions/475.html →Open in CAPEC collection →| Product | Vendor | Status |
|---|---|---|
| Tracked | ||
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| mozjs102 | Tracked | |
| mozjs102 | Tracked | |
| mozjs115 | Tracked | |
| mozjs115 | Tracked | |
| mozjs115 | Tracked | |
| mozjs78 | Tracked | |
| mozjs91 | Tracked | |
| thunderbird | Tracked | |
| thunderbird | Tracked | |
| thunderbird | Tracked |