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CVE-2023-22466

5.4 · MEDIUM

Tokio is a runtime for writing applications with Rust.

Published Jan 4, 2023CWE-665EPSS 0.59%

Overview

CVE-2023-22466 is a medium-severity vulnerability. It was published on January 4, 2023 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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`.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/tokio-rs/tokio/pull/5336GitHubgithub.com/tokio-rs/tokio/releases/tag/tokio-1.23.1GitHubgithub.com/tokio-rs/tokio/security/advisories/GHSA-7rrj-xr53-82p7Reflearn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clientsGitHubgithub.com/tokio-rs/tokio/pull/5336GitHubgithub.com/tokio-rs/tokio/releases/tag/tokio-1.23.1GitHubgithub.com/tokio-rs/tokio/security/advisories/GHSA-7rrj-xr53-82p7Reflearn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-createnamedpipea#pipe_reject_remote_clients

How CyberStrike helps

Frequently asked questions

What is CVE-2023-22466?

CVE-2023-22466 is a medium-severity vulnerability. It was published on January 4, 2023 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2023-22466?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-22466?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-22466?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-22466 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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