6.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.8 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
56.3%
Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where supplementary groups are not set up properly. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. This bug is fixed in Moby (Docker Engine) 20.10.18. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade, this problem can be worked around by not using the "USER $USERNAME"
Dockerfile instruction. Instead by calling ENTRYPOINT ["su", "-", "user"]
the supplementary groups will be set up properly.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Alpine | edge-community | noarch | docker | < 20.10.18-r0 | UNKNOWN |
Alpine | 3.16-community | noarch | docker | < 20.10.18-r0 | UNKNOWN |
Alpine | 3.17-community | noarch | docker | < 20.10.18-r0 | UNKNOWN |
Alpine | 3.18-community | noarch | docker | < 20.10.18-r0 | UNKNOWN |
Alpine | 3.19-community | noarch | docker | < 20.10.18-r0 | UNKNOWN |
Alpine | 3.20-community | noarch | docker | < 20.10.18-r0 | UNKNOWN |
6.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.8 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
56.3%