Arbitrary Code Execution Affecting org.apache.flex.blazeds:flex-messaging-core Open this link in a new tab package, versions [,4.7.3)


0.0
critical
  • Attack Complexity

    Low

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-JAVA-ORGAPACHEFLEXBLAZEDS-31404

  • published

    21 May 2017

  • disclosed

    6 Apr 2017

  • credit

    Markus Wulftange

How to fix?

Upgrade org.apache.flex.blazeds:flex-messaging-core to version 4.7.3 or higher.

Overview

org.apache.flex.blazeds:flex-messaging-core is a flex messaging core component for blazDS

Affected versions of this package are vulnerable to Arbitrary Code Execution. It uses AMF3 deserializers which allow instantiation of arbitrary classes via public parameter-less constructors. An attacker may exploit this to send a malicious AMF3 object to the system to execute arbitrary code.