CVE-2023-22466
Starting with version 1.7.0 and prior to versions 1.18.4, 1.20.3, and 1.23.1, when configuring a Windows named pipe server, setting `pipe_mode` will reset `reject_remote_clients` to `false`.
Does this matter?
Lower severity and a low EPSS score (0.57%). Track it; it rarely justifies an emergency change on its own.
Description
Tokio is a runtime for writing applications with Rust. Starting with version 1.7.0 and prior to versions 1.18.4, 1.20.3, and 1.23.1, when configuring a Windows named pipe server, setting `pipe_mode` will reset `reject_remote_clients` to `false`. If the application has previously configured `reject_remote_clients` to `true`, this effectively undoes the configuration. Remote clients may only access the named pipe if the named pipe's associated path is accessible via a publicly shared folder (SMB). Versions 1.23.1, 1.20.3, and 1.18.4 have been patched. The fix will also be present in all releases starting from version 1.24.0. Named pipes were introduced to Tokio in version 1.7.0, so releases older than 1.7.0 are not affected. As a workaround, ensure that `pipe_mode` is set first after initializing a `ServerOptions`.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.57% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-665
- Affected
- tokio/tokio
- Source
- security-advisories@github.com
References
- https://github.com/tokio-rs/tokio/pull/5336Patch, Third Party Advisory
- https://github.com/tokio-rs/tokio/releases/tag/tokio-1.23.1Release Notes, Third Party Advisory
- https://github.com/tokio-rs/tokio/security/advisories/GHSA-7rrj-xr53-82p7Mitigation, Third Party Advisory
- https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clientsTechnical Description, Third Party Advisory
- https://github.com/tokio-rs/tokio/pull/5336Patch, Third Party Advisory
- https://github.com/tokio-rs/tokio/releases/tag/tokio-1.23.1Release Notes, Third Party Advisory
- https://github.com/tokio-rs/tokio/security/advisories/GHSA-7rrj-xr53-82p7Mitigation, Third Party Advisory
- https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clientsTechnical Description, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.