SB2022060332 - Multiple vulnerabilities in Discourse

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2022-31060)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper access control in banner topic data when handling requests on login-required sites. A remote attacker can access exposed banner topic data to disclose sensitive information.

2) Improper access control (CVE-ID: CVE-2022-31025)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to bypass user approval requirements.

The vulnerability exists due to improper access control in the invite approval logic when inviting users on sites that use single sign-on. A remote user can send an invite to bypass user approval requirements.

Only sites that use single sign-on are affected.

Remediation

Install update from vendor's website.

References

• https://github.com/discourse/discourse/security/advisories/GHSA-5f4f-35fx-gqhq
• https://github.com/discourse/discourse/security/advisories/GHSA-x7jh-mx5q-6f9q