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    CVE-2017-18106

    The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash.

    Published:Mar 29, 2019
    Last Modified:Nov 21, 2024
    EPS:Mar 29, 2019
    EPSS Score:0.00608
    CVSS Score:7.5

    Affected Products

    Vendor
    Atlassian
    Product
    Crowd

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

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    CVE-2022-43782 (CVSS 9.8) — Affected versions of Atlassian Crowd allow an attacker to authenticate as the crowd application via security m…
    CVE-2022-26137 (CVSS 8.8) — A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to cause additional S…
    CVE-2022-26136 (CVSS 9.8) — A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Fil…
    CVE-2020-36240 (CVSS 5.3) — The ResourceDownloadRewriteRule class in Crowd before version 4.0.4, and from version 4.1.0 before 4.1.2 allow…
    CVE-2019-20902 (CVSS 7.5) — Upgrading Crowd via XML Data Transfer can reactivate a disabled user from OpenLDAP. The affected versions are …
    CVE-2019-20104 (CVSS 7.5) — The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 all…
    CVE-2017-18107 (CVSS 6.5) — Various resources in the Crowd Demo application of Atlassian Crowd before version 3.1.1 allow remote attackers…
    CVE-2019-15005 (CVSS 4.3) — The Atlassian Troubleshooting and Support Tools plugin prior to version 1.17.2 allows an unprivileged user to …

    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