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Date: August 20, 2021
In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.
Weakness Type (CWE)
Improper Verification of Cryptographic SignatureCWE-347
Upgrade to version org.eclipse.californium:scandium:2.6.5,3.0.0-M4
|Attack Vector (AV):||NETWORK|
|Attack Complexity (AC):||LOW|
|Privileges Required (PR):||NONE|
|User Interaction (UI):||NONE|
|Access Vector (AV):||NETWORK|
|Access Complexity (AC):||LOW|