5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
13.1%
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).
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.
To recreate, run the docs ServeTask.run() to stand up the HTTP server. Then run netstat
to see what addresses this process is bound.
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
The issue has has been mitigated in dbt-core v1.6.15, dbt-core v1.7.15, and dbt-core v1.8.1 by binding to localhost explicitly by default in dbt docs serve
(https://github.com/dbt-labs/dbt-core/issues/10209).
cwe.mitre.org/data/definitions/1327.html
docs.python.org/3/library/socket.html#socket-families
docs.securesauce.dev/rules/PY030
github.com/advisories/GHSA-pmrx-695r-4349
github.com/dbt-labs/dbt-core/blob/main/core/dbt/task/docs/serve.py#L23C38-L23C39
github.com/dbt-labs/dbt-core/commit/0c08d7a19ad1740be3cb0b2e6d9d64f6537176f7
github.com/dbt-labs/dbt-core/issues/10209
github.com/dbt-labs/dbt-core/pull/10208
github.com/dbt-labs/dbt-core/releases/tag/v1.6.15
github.com/dbt-labs/dbt-core/releases/tag/v1.7.15
github.com/dbt-labs/dbt-core/releases/tag/v1.8.1
github.com/dbt-labs/dbt-core/security/advisories/GHSA-pmrx-695r-4349
nvd.nist.gov/vuln/detail/CVE-2024-36105
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
13.1%