A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2022-674e299893 advisory.

    Automatic update for firejail-0.9.70-1.fc38.

    ##### **Changelog**

    ```
    * Tue Sep  6 2022 Maxwell G <gotmax@e.email> - 0.9.70-1
    - Update to 0.9.70 (rhbz#2042724).
    - Mitigates CVE-2022-31214 (rhbz#2095070).

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202305-19 (Firejail: Local Privilege Escalation)

  - A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus     Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker     can enter an environment in which the Linux user namespace is still the initial user namespace, the     NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In     this way, the filesystem layout can be adjusted to gain root privileges through execution of available     setuid-root binaries such as su or sudo. (CVE-2022-31214)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-3061 advisory.

  - A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus     Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker     can enter an environment in which the Linux user namespace is still the initial user namespace, the     NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In     this way, the filesystem layout can be adjusted to gain root privileges through execution of available     setuid-root binaries such as su or sudo. (CVE-2022-31214)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 10 / 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5167 advisory.

  - A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus     Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker     can enter an environment in which the Linux user namespace is still the initial user namespace, the     NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In     this way, the filesystem layout can be adjusted to gain root privileges through execution of available     setuid-root binaries such as su or sudo. (CVE-2022-31214)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SUSE15 host has a package installed that is affected by a vulnerability as referenced in the openSUSE-SU-2022:10015-1 advisory.

  - A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus     Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker     can enter an environment in which the Linux user namespace is still the initial user namespace, the     NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In     this way, the filesystem layout can be adjusted to gain root privileges through execution of available     setuid-root binaries such as su or sudo. (CVE-2022-31214)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
211247	Fedora 38 : firejail (2022-674e299893)	Nessus	Fedora Local Security Checks	high
175060	GLSA-202305-19 : Firejail: Local Privilege Escalation	Nessus	Gentoo Local Security Checks	high
162611	Debian DLA-3061-1 : firejail - LTS security update	Nessus	Debian Local Security Checks	high
162506	Debian DSA-5167-1 : firejail - security update	Nessus	Debian Local Security Checks	high
162481	openSUSE 15 Security Update : firejail (openSUSE-SU-2022:10015-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2022-31214

high

Tenable Plugins

high

high

high

high

high