CVE-2024-36105

Description

### Summary Binding to `INADDR_ANY (0.0.0.0)` or `IN6ADDR_ANY (::)` exposes an application on all network interfaces, increasing the risk of unauthorized access. While doing some static analysis and code inspection, I found the following code binding a socket to `INADDR_ANY` by passing `""` as the address. This effectively binds to any network interface on the local system, not just localhost (127.0.0.1). ### Details As stated in the Python docs, a special form for address is accepted instead of a host address: `''` represents `INADDR_ANY`, equivalent to `"0.0.0.0"`. On systems with IPv6, '' represents `IN6ADDR_ANY`, which is equivalent to `"::"`. https://github.com/dbt-labs/dbt-core/blob/main/core/dbt/task/docs/serve.py#L23C38-L23C39 The text around this code also imply the intention is to host docs only on localhost. ### PoC To recreate, run the docs ServeTask.run() to stand up the HTTP server. Then run `netstat` to see what addresses this process is bound. ### Impact A user who serves docs on an unsecured public network, may unknowingly be hosting an unsecured (http) web site for any remote user/system to access on the same network. Further references: https://docs.python.org/3/library/socket.html#socket-families https://docs.securesauce.dev/rules/PY030 https://cwe.mitre.org/data/definitions/1327.html ### Patches The issue has has been mitigated in [dbt-core v1.6.15](https://github.com/dbt-labs/dbt-core/releases/tag/v1.6.15), [dbt-core v1.7.15](https://github.com/dbt-labs/dbt-core/releases/tag/v1.7.15), and [dbt-core v1.8.1](https://github.com/dbt-labs/dbt-core/releases/tag/v1.8.1) by binding to localhost explicitly by default in `dbt docs serve` (https://github.com/dbt-labs/dbt-core/issues/10209).

How to fix CVE-2024-36105

To remediate CVE-2024-36105, upgrade the affected package to a fixed version below.

• —upgrade to 1.6.15 or later

Is CVE-2024-36105 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (1)