HighGHSA-79jw-2f46-wv22CVE-2022-21705

Authenticated remote code execution in October CMS

Published 23 Feb 2022 · Updated 19 Feb 2024

Affected packages

october/systemComposer
Affected
<1.0.474
Fixed in
1.0.474
Update to the fixed version for your release line, for example:composer require october/system:^1.0.474
october/systemComposer
Affected
>=1.1.0 <1.1.10
Fixed in
1.1.10
Update to the fixed version for your release line, for example:composer require october/system:^1.1.10
october/systemComposer
Affected
>=2.0.0 <2.1.27
Fixed in
2.1.27
Update to the fixed version for your release line, for example:composer require october/system:^2.1.27

Details

Impact

An authenticated user with the permissions to create, modify and delete website pages can exploit this vulnerability to bypass cms.safe_mode / cms.enableSafeMode in order to execute arbitrary code.

  • This issue only affects admin panels that rely on safe mode and restricted permissions.
  • To exploit this vulnerability, an attacker must first have access to the backend area.

Patches

The issue has been patched in Build 474 (v1.0.474) and v1.1.10.

Workarounds

Apply https://github.com/octobercms/library/commit/c393c5ce9ca2c5acc3ed6c9bb0dab5ffd61965fe to your installation manually if unable to upgrade to Build 474 or v1.1.10.

References

Credits to:

  • David Miller

For more information

If you have any questions or comments about this advisory:

  • Email us at [hello@octobercms.com](mailto:hello@octobercms.com)

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.