CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
56.5%
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. In affected versions when the user sends a build request that contains a Git URL that contains credentials and the build creates a provenance attestation describing that build, these credentials could be visible from the provenance attestation. Git URL can be passed in two ways: 1) Invoking build directly from a URL with credentials. 2) If the client sends additional version control system (VCS) info hint parameters on builds from a local source. Usually, that would mean reading the origin URL from .git/config
file. When a build is performed under specific conditions where credentials were passed to BuildKit they may be visible to everyone who has access to provenance attestation. Provenance attestations and VCS info hints were added in version v0.11.0. Previous versions are not vulnerable. In v0.10, when building directly from Git URL, the same URL could be visible in BuildInfo
structure that is a predecessor of Provenance attestations. Previous versions are not vulnerable. This bug has been fixed in v0.11.4. Users are advised to upgrade. Users unable to upgrade may disable VCS info hints by setting BUILDX_GIT_INFO=0
. buildctl
does not set VCS hints based on .git
directory, and values would need to be passed manually with --opt
.
Vendor | Product | Version | CPE |
---|---|---|---|
mobyproject | buildkit | * | cpe:2.3:a:mobyproject:buildkit:*:*:*:*:*:*:*:* |
github.com/moby/buildkit/commit/75123c696506bdbca1ed69906479e200f1b62604
github.com/moby/buildkit/security/advisories/GHSA-gc89-7gcr-jxqc
lists.fedoraproject.org/archives/list/[email protected]/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/
lists.fedoraproject.org/archives/list/[email protected]/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/
lists.fedoraproject.org/archives/list/[email protected]/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
56.5%