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kube-bench/Dockerfile
Jonas-Taha El Sesiy 20ad80577c
Bump docker base images (#1465)
During a recent CVE scan we found kube-bench to use `alpine:3.18` as the final image which has a known high CVE.

```
grype aquasec/kube-bench:v0.6.15
 ✔ Vulnerability DB        [no update available]
 ✔ Loaded image
 ✔ Parsed image
 ✔ Cataloged packages      [73 packages]
 ✔ Scanning image...       [4 vulnerabilities]
   ├── 0 critical, 4 high, 0 medium, 0 low, 0 negligible
   └── 4 fixed
NAME        INSTALLED  FIXED-IN  TYPE  VULNERABILITY  SEVERITY
libcrypto3  3.1.0-r4   3.1.1-r0  apk   CVE-2023-2650  High
libssl3     3.1.0-r4   3.1.1-r0  apk   CVE-2023-2650  High
openssl     3.1.0-r4   3.1.1-r0  apk   CVE-2023-2650  High
```

The CVE in question was addressed in the latest [alpine release](https://www.alpinelinux.org/posts/Alpine-3.15.9-3.16.6-3.17.4-3.18.2-released.html), hence updating the dockerfiles accordingly
2023-07-26 18:22:19 +03:00

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FROM golang:1.20.6 AS build
WORKDIR /go/src/github.com/aquasecurity/kube-bench/
COPY makefile makefile
COPY go.mod go.sum ./
COPY main.go .
COPY check/ check/
COPY cmd/ cmd/
COPY internal/ internal/
ARG KUBEBENCH_VERSION
RUN make build && cp kube-bench /go/bin/kube-bench
FROM alpine:3.18.2 AS run
WORKDIR /opt/kube-bench/
# add GNU ps for -C, -o cmd, and --no-headers support
# https://github.com/aquasecurity/kube-bench/issues/109
RUN apk --no-cache add procps
# Upgrading apk-tools to remediate CVE-2021-36159 - https://snyk.io/vuln/SNYK-ALPINE314-APKTOOLS-1533752
# https://github.com/aquasecurity/kube-bench/issues/943
RUN apk --no-cache upgrade apk-tools
# Openssl is used by OpenShift tests
# https://github.com/aquasecurity/kube-bench/issues/535
# Ensuring that we update/upgrade before installing openssl, to mitigate CVE-2021-3711 and CVE-2021-3712
RUN apk update && apk upgrade && apk --no-cache add openssl
# Add glibc for running oc command
RUN wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub
RUN apk add gcompat
RUN apk add jq
ENV PATH=$PATH:/usr/local/mount-from-host/bin
COPY --from=build /go/bin/kube-bench /usr/local/bin/kube-bench
COPY entrypoint.sh .
COPY cfg/ cfg/
ENTRYPOINT ["./entrypoint.sh"]
CMD ["install"]
# Build-time metadata as defined at http://label-schema.org
ARG BUILD_DATE
ARG VCS_REF
LABEL org.label-schema.build-date=$BUILD_DATE \
org.label-schema.name="kube-bench" \
org.label-schema.description="Run the CIS Kubernetes Benchmark tests" \
org.label-schema.url="https://github.com/aquasecurity/kube-bench" \
org.label-schema.vcs-ref=$VCS_REF \
org.label-schema.vcs-url="https://github.com/aquasecurity/kube-bench" \
org.label-schema.schema-version="1.0"