7.4 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): None (N)
Activity log
- Created & dismissed (max. allowed matches exceeded) suggestion
Coder's AI Bridge Proxy skips TLS certificate verification in default configuration
Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.30.0 and prior to versions 2.32.7, 2.33.8, and 2.34.2, the AI Bridge Proxy (`aibridgeproxyd`) created a goproxy server whose default transport set `InsecureSkipVerify: true` and only assigned a secure transport when an upstream proxy was configured. In the default configuration (no upstream proxy), outbound HTTPS to the Coder access URL accepted any TLS certificate. Practical exploitation requires an on-path (man-in-the-middle) position between the AI Bridge Proxy and the Coder server. Deployments where they are co-located over loopback are effectively unaffected. The fix in versions 2.32.7, 2.33.8, and 2.34.2 applies the secure transport (TLS 1.2 or higher using system root CAs) unconditionally. As a workaround, ensure the Coder access URL uses a trusted certificate and secure the network path between the AI Bridge Proxy and the Coder server (for example, loopback or mTLS).
References
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https://github.com/coder/coder/security/advisories/GHSA-84rm-42xw-mx52 x_refsource_CONFIRM
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https://github.com/coder/coder/pull/26131 x_refsource_MISC
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https://github.com/coder/coder/releases/tag/v2.32.7 x_refsource_MISC
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https://github.com/coder/coder/releases/tag/v2.33.8 x_refsource_MISC
-
https://github.com/coder/coder/releases/tag/v2.34.2 x_refsource_MISC
Affected products
- ==>= 2.33.0, < 2.33.8
- ==>= 2.30.0, < 2.32.7
- ==>= 2.34.0, < 2.34.2