ibexa/http-cache affected by Breach with Varnish VCL
Impact
This is not a vulnerability in the code per se, but included Varnish VCL templates enable compression of API and JSON messages. This is a potential case of the BREACH vulnerability, which affects HTTP compression, where secrets can be extracted through carefully crafted requests. The fix disables compression in these templates. Please make sure to make the same change in your configuration files, see the release notes for specific instructions. Please check your web server configuration as well.
Source excerpt · OSVAffected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
| Affected range | Recorded fix |
|---|---|
| From 4.6.0 before 4.6.14Ecosystem versions | 4.6.14 |
Version evidence: OSV · GHSA-fh7v-q458-7vmw
View original version evidence (14 explicit versions)
Original source description
Impact
This is not a vulnerability in the code per se, but included Varnish VCL templates enable compression of API and JSON messages. This is a potential case of the BREACH vulnerability, which affects HTTP compression, where secrets can be extracted through carefully crafted requests. The fix disables compression in these templates. Please make sure to make the same change in your configuration files, see the release notes for specific instructions. Please check your web server configuration as well.
Patches
- See "Patched versions".
- https://github.com/ibexa/http-cache/commit/e03f683e8db53b6d253e1af8177befeecc8d3914
Workarounds
Make sure HTTP compression is disabled for REST API requests and other communication that might contain secrets.
References
- Advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-006-vulnerabilities-in-content-name-pattern-commerce-shop-and-varnish-vhost-templates
- Release notes: https://doc.ibexa.co/en/latest/update_and_migration/from_4.6/update_from_4.6/#v4614
- https://github.com/ibexa/post-install/security/advisories/GHSA-4h8f-c635-25p7
- https://github.com/ezsystems/ezplatform-http-cache/security/advisories/GHSA-mgfg-7533-7jf6
- https://www.breachattack.com/
References
- Security advisory github.com/ezsystems/ezplatform-http-cache/security/advisories/GHSA-mgfg-7533-7jf6
- Security advisory github.com/ibexa/http-cache/security/advisories/GHSA-fh7v-q458-7vmw
- Security advisory github.com/ibexa/post-install/security/advisories/GHSA-4h8f-c635-25p7
- Patch github.com/ibexa/http-cache/commit/e03f683e8db53b6d253e1af8177befeecc8d3914
- Security advisory developers.ibexa.co/security-advisories/ibexa-sa-2024-006-vulnerabilities-in-content-name-pattern-commerce-shop-and-varnish-vhost-templates
- Source reference doc.ibexa.co/en/latest/update_and_migration/from_4.6/update_from_4.6/
- Source reference github.com/ibexa/http-cache
- Source reference www.breachattack.com/