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Signature Validation Bypass Affecting org.eclipse.californium:scandium package, versions [2.0.0,2.6.5) [3.0.0-M1,3.0.0-M4)

0.0
medium

  • Attack Complexity

    High

  • Confidentiality

    High

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  • snyk-id

    SNYK-JAVA-ORGECLIPSECALIFORNIUM-1568503

  • published

    22 Aug 2021

  • disclosed

    22 Aug 2021

  • credit

    Achim Kraus

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Introduced: 22 Aug 2021

CVE-2021-34433 Open this link in a new tab
CWE-322 Open this link in a new tab

How to fix?

Upgrade org.eclipse.californium:scandium to version 2.6.5, 3.0.0-M4 or higher.

Overview

org.eclipse.californium:scandium is a library for exchanging data using DTLS over UDP.

Affected versions of this package are vulnerable to Signature Validation Bypass. If the signature is not included in ServerKeyExchange, then the certificate based (x509 and RPK) DTLS handshakes succeeds without verifying the server side's signature on the client side.