Vulnerability GHSA-92hv-j533-69wc

Low Risk

2 months ago

Wagtail: Identification of documents by SHA1 hash

0.1 and 0.2 and 0.3 and 0.3.1 and 0.4 and 0.4.1 and 0.5 and 0.6 and 0.7 and 0.8 and 0.8.1 - 0.8.10 and 1.0b1 and 1.0b2 and 1.0rc1 and 1.0rc2 and 1.0 and 1.1rc1 and 1.1 and 1.2rc1 and 1.2 and 1.3rc1 and 1.3 and 1.3.1 and 1.4rc1 and 1.4 and 1.4.1 - 1.4.6 and 1.5rc1 and 1.5 and 1.5.1 - 1.5.3 and 1.6rc1 and 1.6 and 1.6.1 - 1.6.3 and 1.7rc1 and 1.7 and 1.8rc1 and 1.8 and 1.8.1 - 1.8.2 and 1.9rc1 and 1.9 and 1.9.1 and 1.10rc1 and 1.10 and 1.10.1 and 1.11rc1 and 1.11 and 1.11.1 and 1.12rc1 and 1.12 and 1.12.1 - 1.12.6 and 1.13rc1 and 1.13 and 1.13.1 - 1.13.4 and 2.0b1 and 2.0rc1 and 2.0 and 2.0.1 - 2.0.2 and 2.1rc1 and 2.1rc2 and 2.1 and 2.1.1 - 2.1.3 and 2.2rc1 and 2.2rc2 and 2.2 and 2.2.1 - 2.2.2 and 2.3rc1 and 2.3rc2 and 2.3 and 2.4rc1 and 2.4 and 2.5rc1 and 2.5 and 2.5.1 - 2.5.2 and 2.6rc1 and 2.6 and 2.6.1 - 2.6.3 and 2.7rc1 and 2.7rc2 and 2.7 and 2.7.1 - 2.7.4 and 2.8rc1 and 2.8 and 2.8.1 - 2.8.2 and 2.9rc1 and 2.9 and 2.9.1 - 2.9.3 and 2.10rc1 and 2.10rc2 and 2.10 and 2.10.1 - 2.10.2 and 2.11rc1 and 2.11 and 2.11.1 - 2.11.9 and 2.12rc1 and 2.12 and 2.12.1 - 2.12.6 and 2.13rc1 and 2.13rc2 and 2.13rc3 and 2.13 and 2.13.1 - 2.13.5 and 2.14rc1 and 2.14 and 2.14.1 - 2.14.2 and 2.15rc1 and 2.15rc2 and 2.15 and 2.15.1 - 2.15.6 and 2.16rc1 and 2.16rc2 and 2.16 and 2.16.1 - 2.16.3 and 3.0rc1 and 3.0rc2 and 3.0rc3 and 3.0 and 3.0.1 - 3.0.3 and 4.0rc1 and 4.0rc2 and 4.0 and 4.0.1 - 4.0.4 and 4.1rc1 and 4.1 and 4.1.1 - 4.1.9 and 4.2rc1 and 4.2 and 4.2.1 - 4.2.4 and 5.0rc1 and 5.0 and 5.0.1 - 5.0.5 and 5.1rc1 and 5.1 and 5.1.1 - 5.1.3 and 5.2rc1 and 5.2 and 5.2.1 - 5.2.8 and 6.0rc1 and 6.0 and 6.0.1 - 6.0.6 and 6.1rc1 and 6.1rc2 and 6.1 and 6.1.1 - 6.1.3 and 6.2rc1 and 6.2 and 6.2.1 - 6.2.4 and 6.3rc1 and 6.3rc2 and 6.3 and 6.3.1 - 6.3.8 and 6.4rc1 and 6.4 and 6.4.1 - 6.4.2 and 7.0rc1 and 7.0 and 7.0.1 - 7.0.8 and 7.1 and 7.1.1 - 7.1.3 and 7.2rc1 and 7.2 and 7.2.1 - 7.2.3 and 7.3rc1 and 7.3 and 7.3.1 - 7.3.3 and 7.4 and 7.4.1 - 7.4.2 and 8.0rc1

Summary

Wagtail: Identification of documents by SHA1 hash

Details

Impact

By passing specific HTTP headers to the document serve URL endpoint, an attacker was able to determine whether a document with a given ID matched a specified SHA1 hash, regardless of any permission restrictions on the document or knowing its filename. This could allow an attacker to determine whether a document with a specific known hash is present in the Wagtail document library.

This vulnerability does not expose the document's contents or any metadata beyond the already known SHA1 hash, and does not expose information about any documents for which the attacker does not know the SHA1 hash.

Patches

Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.

Workarounds

Site owners who are unable to upgrade can strip If-Match and If-None-Match from anonymous requests to /documents/ at the reverse proxy, or use a custom document model without a file_hash attribute.