CVE-2023-22466
reject_remote_clients Configuration corruption
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`.
How to fix CVE-2023-22466
To remediate CVE-2023-22466, upgrade the affected package to a fixed version below.
- —upgrade to 1.24.2-1 or later
- —upgrade to 1.18.4 or later
- —upgrade to 1.18.4 or later
Is CVE-2023-22466 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.24.2-1
- >= 1.7.0, < 1.18.4
- >= 1.7.0, < 1.18.4, >= 1.19.0, < 1.20.3, >= 1.21.0, < 1.23.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L |