BentoML through 1.4.39 contains a Dockerfile instruction injection vulnerability that allows attackers to add arbitrary build instructions by embedding newlines in docker.env mapping keys rendered by the legacy base.j2 template. Attackers can supply a crafted bentofile.yaml or imported bento archive so that bentoml containerize executes injected RUN instructions during docker build, accessing build secrets and poisoning images.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/bento/bui…
disclosure@vulncheck.com
https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/container…
disclosure@vulncheck.com
https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/container…
disclosure@vulncheck.com
https://github.com/bentoml/BentoML/blob/v1.4.39/src/bentoml/_internal/container…
disclosure@vulncheck.com
https://github.com/geo-chen/oss/blob/main/BentoML.md
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/bentoml-through-1.4.39-dockerfile-instruct…
disclosure@vulncheck.com