Advisory Published

ZDI-20-689: IBM WebSphere Application Server IIOP Deserialization of Untrusted Data Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of IBM WebSphere. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the IIOP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of root.

Affected SoftwareAffected VersionHow to fix
IBM WebSphere

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Frequently Asked Questions

  • What is the severity of ZDI-20-689?

    The severity of ZDI-20-689 is critical due to the potential for remote code execution without authentication.

  • How do I fix ZDI-20-689?

    To fix ZDI-20-689, you should apply the latest patches and updates provided by IBM for WebSphere.

  • Who is affected by ZDI-20-689?

    ZDI-20-689 affects installations of IBM WebSphere that utilize the IIOP protocol.

  • What type of attack can ZDI-20-689 enable?

    ZDI-20-689 can enable remote attackers to execute arbitrary code on affected systems.

  • Is authentication required to exploit ZDI-20-689?

    No, authentication is not required to exploit ZDI-20-689, making it particularly dangerous.

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