charmbracelet/charm · Security

Server-Side Request Forgery in charm

GHSA ID
GHSA-4wpp-w5r4-7v5v
CVE ID
CVE-2022-29180
Severity
critical
Published
Updated
CVSS
9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3
9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

We've discovered a vulnerability in which attackers could forge HTTP requests to manipulate the charm data directory to access or delete anything on the server. This has been patched in https://github.com/charmbracelet/charm/commit/3c90668f955c7ce5ef721e4fc9faee7053232fd3 and is available in release v0.12.1. We recommend that all users running self-hosted charm instances update immediately.

This vulnerability was found in-house and we haven't been notified of any potential exploiters.

Additional notes

  • Encrypted user data uploaded to the Charm server is safe as Charm servers cannot decrypt user data. This includes filenames, paths, and all key-value data.
  • Users running the official Charm Docker images are at minimal risk because the exploit is limited to the containerized filesystem.

For more information

If you have any questions or comments about this advisory:


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CWEs

References