CVE-2025-1801
Description
A flaw was found in the Ansible aap-gateway. Concurrent requests handled by the gateway grpc service can result in concurrency issues due to race condition requests against the proxy. This issue potentially allows a less privileged user to obtain the JWT of a greater privileged user, enabling the server to be jeopardized. A user session or confidential data might be vulnerable.
Statement
Red Hat has evaluated this vulnerability. This issue only affects versions AAP 2.5 GA and onwards.
Mitigation
Follow the mitigation steps to avoid the flaw from happening. It is recommended to update the product after the fix is available.
1) set GRPC_SERVER_MAX_THREADS_PER_PROCESS = 1
This mitigates problems going FORWARD for the issue because there is only one thread using the ExternalAuth() object instantiated by the parent process. This eliminates the thread safety risk as the worker only processes one request at a time.
2) It is possible that at any time since the install/upgrade of AAP 2.5, that long lived Oauth tokens created in the components with the endpoints could implicate long term access to a different user's identity/privileges. Requests made with these tokens will appear to be from the user for which they were created and are indistinguishable from “valid” tokens that were created by the correct user:
/api/controller/v2/tokens/
/api/controller/v2/applications/<id>/tokens/
/api/galaxy/v3/auth/token/
/api/controller/o/token/
Because it is likely not feasible to back trace every request that could have generated a token to its original request in the GRPC server, the most conservative and safe path to mitigate this risk would be to invalidate/revoke all existing oauth tokens in the components (hub, controller, eda).
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.1 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When a race condition makes it possible to bypass a resource cleanup routine or trigger multiple initialization routines, it may lead to resource exhaustion.
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Instability
When a race condition allows multiple control flows to access a resource simultaneously, it might lead the product(s) into unexpected states, possibly resulting in a crash.
Confidentiality,Integrity
Technical Impact: Read Files or Directories; Read Application Data
When a race condition is combined with predictable resource names and loose permissions, it may be possible for an attacker to overwrite or access confidential data (CWE-59).
Access Control
Technical Impact: Execute Unauthorized Code or Commands; Gain Privileges or Assume Identity; Bypass Protection Mechanism
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
Acknowledgements
This issue was discovered by Chris Meyers (Red Hat) and Elijah DeLee (Red Hat).
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