GHSA-v2rg-8cwr-75g8

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    GHSA-v2rg-8cwr-75g8

    Published: 18 Mar 2022Last Modified: 8 Nov 2023

    Summary: Deserializer tampering in Apache Dubbo

    Details: Each Apache Dubbo server will set a serialization id to tell the clients which serialization protocol it is working on. But for Dubbo versions before 2.7.8 or 2.6.9, an attacker can choose which serialization id the Provider will use by tampering with the byte preamble flags, aka, not following the server's instruction. This means that if a weak deserializer such as the Kryo and FST are somehow in code scope (e.g. if Kryo is somehow a part of a dependency), a remote unauthenticated attacker can tell the Provider to use the weak deserializer, and then proceed to exploit it.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-25641, https://lists.apache.org/thread.html/r99ef7fa35585d3a68762de07e8d2b2bc48b8fa669a03e8d84b9673f3%40%3Cdev.dubbo.apache.org%3E

    Affected packages

    Package

    Name: org.apache.dubbo:dubbo

    Purl: pkg:maven/org.apache.dubbo/dubbo

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 2.5.0
    Fixed -2.7.8

    Affected versions

    2.7.0
    2.7.1
    2.7.2
    2.7.3
    2.7.4
    2.7.4.1
    2.7.5
    2.7.6
    2.7.7

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-v2rg-8cwr-75g8 | CVE-DB