CVE-2021-42840

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    CVE-2021-42840

    Published: 22 Oct 2021Last Modified: 20 Oct 2026

    Summary:

    Details: SuiteCRM before 7.11.19 allows remote code execution via the system settings Log File Name setting. In certain circumstances involving admin account takeover, logger_file_name can refer to an attacker-controlled PHP file under the web root, because only the all-lowercase PHP file extensions were blocked. NOTE: this issue exists because of an incomplete fix for CVE-2020-28328.

    References: https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19, https://github.com/rapid7/metasploit-framework/commits/master/modules/exploits/linux/http/suitecrm_log_file_rce.rb, https://suitecrm.com/time-to-upgrade-suitecrm-7-11-19-7-10-30-lts-released/, http://packetstormsecurity.com/files/165001/SuiteCRM-7.11.18-Remote-Code-Execution.html, https://theyhack.me/SuiteCRM-RCE-2/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -9cb957e4f41562eb44f6ce8c982e2a3c169fc951

    Affected versions

    v7.11.18
    v7.11.17
    v7.11.16
    v7.11.15
    v7.11.14
    v7.11.13
    v7.11.12
    v7.11.11
    v7.11.8
    v7.11.7
    v7.11.6
    v7.11.5
    v7.11.4
    v7.11.3
    v7.11.2
    v7.11.1
    v7.11.0

    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
    CVE-2021-42840 | CVE-DB