SB2023082958 - Observable Response Discrepancy in authentik

Description

This security bulletin contains information about 1 vulnerability.

1) Observable Response Discrepancy (CVE-ID: CVE-2023-39522)

CWE-ID: CWE-204 - Observable Response Discrepancy

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

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to observable response discrepancy in the recovery flow identification stage when handling recovery flow requests. A remote attacker can submit crafted username or email values to disclose sensitive information.

Only setups configured with a recovery flow are vulnerable, and enumeration may be possible by username, email, or both depending on configuration.

Remediation

Install update from vendor's website.

References

• https://github.com/goauthentik/authentik/security/advisories/GHSA-vmf9-6pcv-xr87
• https://github.com/advisories/GHSA-vmf9-6pcv-xr87