Ciphersuite Allows Incorrectly Signed Certificates in ARM mbedTLS

CVE-2018-1000520 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:P/A:N

ARM mbedTLS version 2.7.0 and earlier contains a Ciphersuite Allows Incorrectly Signed Certificates vulnerability in mbedtls_ssl_get_verify_result() that can result in ECDSA-signed certificates are accepted, when only RSA-signed ones should be.. This attack appear to be exploitable via Peers negotiate a TLS-ECDH-RSA-* ciphersuite. Any of the peers can then provide an ECDSA-signed certificate, when only an RSA-signed one should be accepted..

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