CVE-2021-33393

    Dashboard / Vulnerabilities / CVE-2021-33393

    CVE-2021-33393

    Published: 9 Jun 2021Last Modified: 24 Sept 2025

    Summary:

    Details: lfs/backup in IPFire 2.25-core155 does not ensure that /var/ipfire/backup/bin/backup.pl is owned by the root account. It might be owned by an unprivileged account, which could potentially be used to install a Trojan horse backup.pl script that is later executed by root. Similar problems with the ownership/permissions of other files may be present as well.

    References: http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.html, https://github.com/MucahitSaratar/ipfire-2-25-auth-rce, https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b217f6, https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-05-17

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -6769d909306d7bdc43d64598872126fcf1b217f6

    Affected versions

    v2.11-core56

    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-2021-33393 | CVE-DB