Bug 1882306 (CVE-2020-15185) - CVE-2020-15185 helm: write access to the index file allows an attacker to inject bad chart into repository
Summary: CVE-2020-15185 helm: write access to the index file allows an attacker to inj...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-15185
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1884134
Blocks: 1882307
TreeView+ depends on / blocked
 
Reported: 2020-09-24 09:52 UTC by Dhananjay Arunesh
Modified: 2021-12-15 02:49 UTC (History)
15 users (show)

Fixed In Version: helm 3.3.2, helm 2.16.11
Clone Of:
Environment:
Last Closed: 2021-10-28 05:03:46 UTC
Embargoed:

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Description Dhananjay Arunesh 2020-09-24 09:52:25 UTC 
In Helm before versions 2.16.11 and 3.3.2, a Helm repository can contain duplicates of the same chart, with the last one always used. If a repository is compromised, this lowers the level of access that an attacker needs to inject a bad chart into a repository. To perform this attack, an attacker must have write access to the index file (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 3.3.2 and 2.16.11. A possible workaround is to manually review the index file in the Helm repository cache before installing software.

References:
https://github.com/helm/helm/commit/055dd41cbe53ce131ab0357524a7f6729e6e40dc
https://github.com/helm/helm/security/advisories/GHSA-jm56-5h66-w453
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