CVE-2024-24557 Moby classic builder cache poisoning

2024-02-0116:26:29

CWE-346

CWE-345

GitHub_M

www.cve.org

moby

cache poisoning

docker

image build

vulnerability

fix

cve-2024-24557

6.9 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:L

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.7%

JSON

Moby is an open-source project created by Docker to enable software containerization. The classic builder cache system is prone to cache poisoning if the image is built FROM scratch. Also, changes to some instructions (most important being HEALTHCHECK and ONBUILD) would not cause a cache miss. An attacker with the knowledge of the Dockerfile someone is using could poison their cache by making them pull a specially crafted image that would be considered as a valid cache candidate for some build steps. 23.0+ users are only affected if they explicitly opted out of Buildkit (DOCKER_BUILDKIT=0 environment variable) or are using the /build API endpoint. All users on versions older than 23.0 could be impacted. Image build API endpoint (/build) and ImageBuild function from github.com/docker/docker/client is also affected as it the uses classic builder by default. Patches are included in 24.0.9 and 25.0.2 releases.

CNA Affected

[
  {
    "vendor": "moby",
    "product": "moby",
    "versions": [
      {
        "version": ">= 25.0.0, < 25.0.2",
        "status": "affected"
      },
      {
        "version": " < 24.0.9",
        "status": "affected"
      }
    ]
  }
]