An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or corrupt existing files, which could possibly lead to a DoS attack.

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0091 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2020-24330:
    An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges     instead of by the tss user, it fails to drop the root gid privilege when no longer needed.

    CVE-2020-24331:
    An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings     related to this daemon).

    CVE-2020-24332:
    An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or     corrupt existing files, which could possibly lead to a DoS attack.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or     corrupt existing files, which could possibly lead to a DoS attack. (CVE-2020-24332)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:1627 advisory.

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges     instead of by the tss user, it fails to drop the root gid privilege when no longer needed.
    (CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings     related to this daemon). (CVE-2020-24331)

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or     corrupt existing files, which could possibly lead to a DoS attack. (CVE-2020-24332)

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

The remote NewStart CGSL host, running version MAIN 6.02, has trousers packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges     instead of by the tss user, it fails to drop the root gid privilege when no longer needed.
    (CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings     related to this daemon). (CVE-2020-24331)

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or     corrupt existing files, which could possibly lead to a DoS attack. (CVE-2020-24332)

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

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2021:1627 advisory.

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges     instead of by the tss user, it fails to drop the root gid privilege when no longer needed.
    (CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings     related to this daemon). (CVE-2020-24331)

  - An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges,     the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or     corrupt existing files, which could possibly lead to a DoS attack. (CVE-2020-24332)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1627 advisory.

    [0.3.15-1]
    - Rebase to 0.3.15
    - Fix CVE-2020-24330 CVE-2020-24331 CVE-2020-24332     resolves: rhbz#1725782 rhbz#1877517 rhbz#1882402 rhbz#1882414

Tenable has extracted the preceding description block directly from the Oracle Linux 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 CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:1627 advisory.

  - trousers: fails to drop the root gid privilege when no longer needed (CVE-2020-24330)

  - trousers: tss user still has read and write access to the /etc/tcsd.conf file if tcsd is started as root     (CVE-2020-24331)

  - trousers: tss user can be used to create or corrupt existing files, this could lead to DoS     (CVE-2020-24332)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1627 advisory.

    TrouSerS is an implementation of the Trusted Computing Group's Software Stack (TSS) specification.
    TrouSerS enables the user to write applications that make use of the Trusted Platform Module (TPM)     hardware.

    The following packages have been upgraded to a later upstream version: trousers (0.3.15). (BZ#1725782)

    Security Fix(es):

    * trousers: tss user still has read and write access to the /etc/tcsd.conf file if tcsd is started as root     (CVE-2020-24331)

    * trousers: tss user can be used to create or corrupt existing files, this could lead to DoS     (CVE-2020-24332)

    * trousers: fails to drop the root gid privilege when no longer needed (CVE-2020-24330)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

According to the versions of the trousers package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges instead     of by the tss user, it fails to drop the root gid     privilege when no longer needed.(CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     tss user still has read and write access to the     /etc/tcsd.conf file (which contains various settings     related to this daemon).(CVE-2020-24331)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     creation of the system.data file is prone to symlink     attacks. The tss user can be used to create or corrupt     existing files, which could possibly lead to a DoS     attack.(CVE-2020-24332)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the trousers package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     creation of the system.data file is prone to symlink     attacks. The tss user can be used to create or corrupt     existing files, which could possibly lead to a DoS     attack.(CVE-2020-24332)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges instead     of by the tss user, it fails to drop the root gid     privilege when no longer needed.(CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     tss user still has read and write access to the     /etc/tcsd.conf file (which contains various settings     related to this daemon).(CVE-2020-24331)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the trousers packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     creation of the system.data file is prone to symlink     attacks. The tss user can be used to create or corrupt     existing files, which could possibly lead to a DoS     attack.(CVE-2020-24332)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges instead     of by the tss user, it fails to drop the root gid     privilege when no longer needed.(CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     tss user still has read and write access to the     /etc/tcsd.conf file (which contains various settings     related to this daemon).(CVE-2020-24331)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the trousers package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges instead     of by the tss user, it fails to drop the root gid     privilege when no longer needed.(CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     creation of the system.data file is prone to symlink     attacks. The tss user can be used to create or corrupt     existing files, which could possibly lead to a DoS     attack.(CVE-2020-24332)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     tss user still has read and write access to the     /etc/tcsd.conf file (which contains various settings     related to this daemon).(CVE-2020-24331)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Security update for trousers.

Fixes for the following CVEs, plus a fix for an annocheck warning.

  - Fix for CVE-2020-24330 (RHBZ#1874824)

  - Fix for CVE-2020-24331 (RHBZ#1870057)

  - Fix for CVE-2020-24332 (RHBZ#1870053)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the trousers package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges instead     of by the tss user, it fails to drop the root gid     privilege when no longer needed.(CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     tss user still has read and write access to the     /etc/tcsd.conf file (which contains various settings     related to this daemon).(CVE-2020-24331)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     creation of the system.data file is prone to symlink     attacks. The tss user can be used to create or corrupt     existing files, which could possibly lead to a DoS     attack.(CVE-2020-24332)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the trousers package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - TrouSerS is an implementation of the Trusted Computing     Group's Software Stack (TSS) specification. You can use     TrouSerS to write applications that make use of your     TPM hardware. TPM hardware can create, store and use     RSA keys securely (without ever being exposed in     memory), verify a platform's software state using     cryptographic hashes and more.Security Fix(es):An issue     was discovered in TrouSerS through 0.3.14. If the tcsd     daemon is started with root privileges instead of by     the tss user, it fails to drop the root gid privilege     when no longer needed.(CVE-2020-24330)An issue was     discovered in TrouSerS through 0.3.14. If the tcsd     daemon is started with root privileges, the tss user     still has read and write access to the /etc/tcsd.conf     file (which contains various settings related to this     daemon).(CVE-2020-24331)An issue was discovered in     TrouSerS through 0.3.14. If the tcsd daemon is started     with root privileges, the creation of the system.data     file is prone to symlink attacks. The tss user can be     used to create or corrupt existing files, which could     possibly lead to a DoS attack.(CVE-2020-24332)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the trousers packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges instead     of by the tss user, it fails to drop the root gid     privilege when no longer needed.(CVE-2020-24330)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     tss user still has read and write access to the     /etc/tcsd.conf file (which contains various settings     related to this daemon).(CVE-2020-24331)

  - An issue was discovered in TrouSerS through 0.3.14. If     the tcsd daemon is started with root privileges, the     creation of the system.data file is prone to symlink     attacks. The tss user can be used to create or corrupt     existing files, which could possibly lead to a DoS     attack.(CVE-2020-24332)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the trousers package has been released.

the TrouSerS project reports reports :

If the tcsd daemon is started with root privileges, it fails to drop the root gid after it is no longer needed.

If the tcsd daemon is started with root privileges, the tss user has read and write access to the /etc/tcsd.conf file.

If the tcsd daemon is started with root privileges, the creation of the system.data file is prone to symlink attacks.

ID	Name	Product	Family	Severity
236526	Alibaba Cloud Linux 3 : 0091: trousers (ALINUX3-SA-2022:0091)	Nessus	Alibaba Cloud Linux Local Security Checks	high
229901	Linux Distros Unpatched Vulnerability : CVE-2020-24332	Nessus	Misc.	medium
184550	Rocky Linux 8 : trousers (RLSA-2021:1627)	Nessus	Rocky Linux Local Security Checks	high
160732	NewStart CGSL MAIN 6.02 : trousers Multiple Vulnerabilities (NS-SA-2022-0066)	Nessus	NewStart CGSL Local Security Checks	high
157583	AlmaLinux 8 : trousers (ALSA-2021:1627)	Nessus	Alma Linux Local Security Checks	high
149966	Oracle Linux 8 : trousers (ELSA-2021-1627)	Nessus	Oracle Linux Local Security Checks	high
149751	CentOS 8 : trousers (CESA-2021:1627)	Nessus	CentOS Local Security Checks	high
149697	RHEL 8 : trousers (RHSA-2021:1627)	Nessus	Red Hat Local Security Checks	high
147675	EulerOS Virtualization 2.9.0 : trousers (EulerOS-SA-2021-1659)	Nessus	Huawei Local Security Checks	high
147506	EulerOS Virtualization 2.9.1 : trousers (EulerOS-SA-2021-1628)	Nessus	Huawei Local Security Checks	high
147085	EulerOS Virtualization for ARM 64 3.0.6.0 : trousers (EulerOS-SA-2021-1563)	Nessus	Huawei Local Security Checks	high
144742	EulerOS Virtualization for ARM 64 3.0.2.0 : trousers (EulerOS-SA-2021-1051)	Nessus	Huawei Local Security Checks	high
142529	Fedora 33 : trousers (2020-ab3dace708)	Nessus	Fedora Local Security Checks	high
141334	EulerOS 2.0 SP9 : trousers (EulerOS-SA-2020-2182)	Nessus	Huawei Local Security Checks	high
141321	EulerOS 2.0 SP9 : trousers (EulerOS-SA-2020-2172)	Nessus	Huawei Local Security Checks	high
141008	EulerOS 2.0 SP8 : trousers (EulerOS-SA-2020-2160)	Nessus	Huawei Local Security Checks	high
140126	Photon OS 3.0: Trousers PHSA-2020-3.0-0131	Nessus	PhotonOS Local Security Checks	high
139866	Photon OS 2.0: Trousers PHSA-2020-2.0-0277	Nessus	PhotonOS Local Security Checks	high
139716	FreeBSD : security/trousers -- several vulnerabilities (e37a0a7b-e1a7-11ea-9538-0c9d925bbbc0)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2020-24332

medium

Tenable Plugins

high

medium

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high