NewStart CGSL CORE 5.04 / MAIN 5.04 : docker-ce Multiple Vulnerabilities (NS-SA-2022-0018)

medium Nessus Plugin ID 160834

Synopsis

The remote NewStart CGSL host is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has docker-ce packages installed that are affected by multiple vulnerabilities:

- Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host's filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted. (CVE-2021-41089)

- Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where the data directory (typically `/var/lib/docker`) contained subdirectories with insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as `setuid`), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade limit access to the host to trusted users. Limit access to host volumes to trusted containers.
(CVE-2021-41091)

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

Solution

Upgrade the vulnerable CGSL docker-ce packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

See Also

http://security.gd-linux.com/notice/NS-SA-2022-0018

http://security.gd-linux.com/info/CVE-2021-41089

http://security.gd-linux.com/info/CVE-2021-41091

Plugin Details

Severity: Medium

ID: 160834

File Name: newstart_cgsl_NS-SA-2022-0018_docker-ce.nasl

Version: 1.2

Type: local

Published: 5/10/2022

Updated: 5/10/2022

Risk Information

VPR

Risk Factor: Medium

Score: 4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2021-41091

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_core:docker-ce, p-cpe:/a:zte:cgsl_core:docker-ce-debuginfo, p-cpe:/a:zte:cgsl_main:docker-ce, p-cpe:/a:zte:cgsl_main:docker-ce-debuginfo, cpe:/o:zte:cgsl_core:5, cpe:/o:zte:cgsl_main:5

Required KB Items: Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2022

Vulnerability Publication Date: 10/4/2021

Reference Information

CVE: CVE-2021-41089, CVE-2021-41091