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GHSA-jm79-9pm4-vrw9: Decidim vulnerable to sensitive data disclosure

Note: added the actual report as a comment.

Summary

Decidim, a platform for digital citizen participation, uses a third-party library named Ransack for filtering certain database collections (e.g., public meetings). By default, this library allows filtering on all data attributes and associations. This allows an unauthenticated remote attacker to exfiltrate non-public data from the underlying database of a Decidim instance (e.g., exfiltrating data from the user table).

Impact

This issue may lead to Sensitive Data Disclosure.

Patches

The problem was patched in v0.27.3.

Workarounds

Disable or unpublish all meetings components from your application.

ghsa
#git#auth#ruby

Package

bundler decidim (RubyGems)

Affected versions

>= 0.27.0, < 0.27.3

Patched versions

0.27.3

bundler decidim-meetings (RubyGems)

>= 0.27.0, < 0.27.3

0.27.3

Description

Note: added the actual report as a comment.

Summary

Decidim, a platform for digital citizen participation, uses a third-party library named Ransack for filtering certain database collections (e.g., public meetings). By default, this library allows filtering on all data attributes and associations. This allows an unauthenticated remote attacker to exfiltrate non-public data from the underlying database of a Decidim instance (e.g., exfiltrating data from the user table).

Impact

This issue may lead to Sensitive Data Disclosure.

Patches

The problem was patched in v0.27.3.

Workarounds

Disable or unpublish all meetings components from your application.

References

  • GHSA-jm79-9pm4-vrw9
  • https://github.com/decidim/decidim/security/advisories/GHSA-jm79-9pm4-vrw9#advisory-comment-81110
  • https://nvd.nist.gov/vuln/detail/CVE-2023-34090
  • https://github.com/decidim/decidim/releases/tag/v0.27.3

andreslucena published to decidim/decidim

Jul 11, 2023

Published to the GitHub Advisory Database

Jul 11, 2023

Reviewed

Jul 11, 2023

Related news

CVE-2023-34089: Release v0.27.3 · decidim/decidim

Decidim is a participatory democracy framework, written in Ruby on Rails, originally developed for the Barcelona City government online and offline participation website. The processes filter feature is susceptible to Cross-site scripting. This allows a remote attacker to execute JavaScript code in the context of a currently logged-in user. An attacker could use this vulnerability to make other users endorse or support proposals they have no intention of supporting or endorsing. The problem was patched in version 0.27.3 and 0.26.6.

CVE-2023-34090: Sensitive data disclosure

Decidim is a participatory democracy framework, written in Ruby on Rails, originally developed for the Barcelona City government online and offline participation website. Decidim uses a third-party library named Ransack for filtering certain database collections (e.g., public meetings). By default, this library allows filtering on all data attributes and associations. This allows an unauthenticated remote attacker to exfiltrate non-public data from the underlying database of a Decidim instance (e.g., exfiltrating data from the user table). This issue may lead to Sensitive Data Disclosure. The problem was patched in version 0.27.3.