OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's handleLogicalRecovery path in http/logical.go compared the highly privileged recovery token with ordinary string equality. A remote unauthenticated attacker able to make repeated recovery mode requests and measure response timing could infer the recovery token.
The recovered token could then authorize recovery mode operations that read or modify OpenBao data. This issue is fixed in version 2.6.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203
security-advisories@github.com
https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd94…
security-advisories@github.com
https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d2…
security-advisories@github.com
https://github.com/openbao/openbao/pull/3388
security-advisories@github.com
https://github.com/openbao/openbao/pull/3472
security-advisories@github.com
https://github.com/openbao/openbao/releases/tag/v2.6.0
security-advisories@github.com
https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53
security-advisories@github.com