Tokio's reject_remote_clients configuration may get dropped when creating a Windows named pipe
CVE-2023-22466

5.4MEDIUM

Key Information:

Vendor

Tokio-rs

Status
Tokio
Vendor
CVE Published:
4 January 2023

What is CVE-2023-22466?

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.

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Affected Version(s)

tokio >= 1.7.0, < 1.18.4 < 1.7.0, 1.18.4

tokio >= 1.19.0, < 1.20.3 < 1.19.0, 1.20.3

tokio >= 1.21.0, < 1.23.1 < 1.21.0, 1.23.1

References

https://github.com/tokio-rs/tokio/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/tokio-rs/tokio/pull/5336
x_refsource_MISC
https://github.com/tokio-rs/tokio/releases/tag/tokio-1.23.1
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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