GHSA-3gg9-f3vh-866f

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    GHSA-3gg9-f3vh-866f

    Published: 10 Feb 2022Last Modified: 8 Nov 2023

    Summary: Improper Certificate Validation in Graylog

    Details: Graylog before 3.3.3 lacks SSL Certificate Validation for LDAP servers. It allows use of an external user/group database stored in LDAP. The connection configuration allows the usage of unencrypted, SSL- or TLS-secured connections. Unfortunately, the Graylog client code (in all versions that support LDAP) does not implement proper certificate validation (regardless of whether the "Allow self-signed certificates" option is used). Therefore, any attacker with the ability to intercept network traffic between a Graylog server and an LDAP server is able to redirect traffic to a different LDAP server (unnoticed by the Graylog server due to the lack of certificate validation), effectively bypassing Graylog's authentication mechanism.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-15813, https://github.com/Graylog2/graylog2-server/issues/5906, https://github.com/Graylog2/graylog2-server/pull/8569

    Affected packages

    Package

    Name: org.graylog:graylog-parent

    Purl: pkg:maven/org.graylog/graylog-parent

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.3.3

    Affected versions

    2.2.0
    2.2.0-alpha.1
    2.2.0-alpha.2
    2.2.0-alpha.3
    2.2.0-alpha.4
    2.2.0-beta.1
    2.2.0-beta.2
    2.2.0-beta.3
    2.2.0-beta.4
    2.2.0-beta.5
    2.2.0-beta.6
    2.2.0-rc.1
    2.2.1
    2.2.2
    2.2.3

    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-3gg9-f3vh-866f | CVE-DB