7.5
Advisory Published

ZDI-20-690: IBM WebSphere Application Server IIOP Deserialization of Untrusted Data Information Disclosure Vulnerability

This vulnerability allows remote attackers to disclose sensitive information 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 disclose information 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-20-690?

    The severity of ZDI-20-690 has been rated as critical due to its potential for remote exploitation.

  • How do I fix ZDI-20-690?

    To fix ZDI-20-690, you should apply the patches or updates provided by IBM for WebSphere.

  • What type of information can be disclosed due to ZDI-20-690?

    ZDI-20-690 can lead to the disclosure of sensitive information including potentially confidential data exposed through the IIOP protocol.

  • Is authentication required to exploit ZDI-20-690?

    No, authentication is not required to exploit the ZDI-20-690 vulnerability, making it more dangerous.

  • Which software versions are affected by ZDI-20-690?

    IBM WebSphere installations that handle the IIOP protocol are affected by the ZDI-20-690 vulnerability.

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