Detections
Analytics
Amazon Linux 2 : containerd (ALASDOCKER-2022-016)
high Nessus Plugin ID 160406
Language:
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of containerd installed on the remote host is prior to 1.4.6-3. It is, therefore, affected by a vulnerability as referenced in the ALAS2DOCKER-2022-016 advisory.- containerd is an open source container runtime with an emphasis on simplicity, robustness and portability.
A bug was found in containerd where container root directories and some plugins had 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 vulnerability has been fixed in containerd 1.4.11 and containerd 1.5.7. Users should update to these version when they are released and may restart containers or update directory permissions to mitigate the vulnerability. Users unable to update should limit access to the host to trusted users. Update directory permission on container bundles directories. (CVE-2021-41103)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update containerd' to update your system.See Also
Plugin Details
Severity: High
ID: 160406
File Name: al2_ALASDOCKER-2022-016.nasl
Version: 1.2
Type: local
Agent: unix
Published: 5/2/2022
Updated: 5/2/2022
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2021-41103
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:containerd, p-cpe:/a:amazon:linux:containerd-debuginfo, p-cpe:/a:amazon:linux:containerd-stress, cpe:/o:amazon:linux:2
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 3/7/2022
Vulnerability Publication Date: 10/4/2021
Reference Information
CVE: CVE-2021-41103