curl and libcurl before 7.50.1 do not prevent TLS session resumption when the client certificate has changed, which allows remote attackers…
curl and libcurl before 7.50.1 do not prevent TLS session resumption when the client certificate has changed, which allows remote attackers to bypass intended restrictions by resuming a session.
The product does not validate, or incorrectly validates, a certificate.
https://cwe.mitre.org/data/definitions/295.html →Open in CWE collection →Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.
https://cwe.mitre.org/data/definitions/310.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 |
|---|---|---|
| curl | Tracked | |
| curl | Tracked | |
| curl | Tracked | |
| curl | Tracked | |
| curl | Tracked | |
| curl | Tracked | |
| httpd24-curl | Tracked | |
| httpd24-curl | Tracked | |
| httpd24-curl | Tracked | |
| httpd24-curl | Tracked | |
| httpd24-curl | Tracked | |
| httpd24-httpd | Tracked | |
| httpd24-httpd | Tracked | |
| httpd24-httpd | Tracked | |
| httpd24-httpd | Tracked | |
| httpd24-httpd | Tracked | |
| httpd24-nghttp2 | Tracked | |
| httpd24-nghttp2 | Tracked | |
| httpd24-nghttp2 | Tracked | |
| httpd24-nghttp2 | Tracked |