CVE-2024-38351
Published: 18 June 2024
Summary
CVE-2024-38351 is a medium-severity Improper Authentication (CWE-287) vulnerability. Its CVSS base score is 5.4 (Medium).
Operationally, ranked at the 40.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-2103
Vulnerability details
Pocketbase is an open source web backend written in go. In affected versions a malicious user may be able to compromise other user accounts. In order to be exploited users must have both OAuth2 and Password auth methods enabled. A…
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possible attack scenario could be: 1. a malicious actor register with the targeted user's email (it is unverified), 2. at some later point in time the targeted user stumble on your app and decides to sign-up with OAuth2 (_this step could be also initiated by the attacker by sending an invite email to the targeted user_), 3. on successful OAuth2 auth we search for an existing PocketBase user matching with the OAuth2 user's email and associate them, 4. because we haven't changed the password of the existing PocketBase user during the linking, the malicious actor has access to the targeted user account and will be able to login with the initially created email/password. To prevent this for happening we now reset the password for this specific case if the previously created user wasn't verified (an exception to this is if the linking is explicit/manual, aka. when you send `Authorization:TOKEN` with the OAuth2 auth call). Additionally to warn existing users we now send an email alert in case the user has logged in with password but has at least one OAuth2 account linked. The flow will be further improved with ongoing refactoring and we will start sending emails for "unrecognized device" logins (OTP and MFA is already implemented and will be available with the next v0.23.0 release in the near future). For the time being users are advised to update to version 0.22.14. There are no known workarounds for this vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Detects unauthorized successful logons resulting from improper authentication implementations.
Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.
Security awareness training instructs users on secure authentication practices and avoiding credential compromise.
Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.
Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.
Session content review can reveal authentication bypasses or failures in session establishment.
Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.
Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.