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CVE-2023-49092

5.9 · MEDIUM

RustCrypto/RSA is a portable RSA implementation in pure Rust.

Published Nov 28, 2023CWE-385EPSS 0.61%

Overview

CVE-2023-49092 is a medium-severity vulnerability. It was published on November 28, 2023 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.

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/RustCrypto/RSA/issues/19#issuecomment-1822995643GitHubgithub.com/RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hrGitHubgithub.com/RustCrypto/RSA/issues/19#issuecomment-1822995643GitHubgithub.com/RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hr

How CyberStrike helps

Frequently asked questions

What is CVE-2023-49092?

CVE-2023-49092 is a medium-severity vulnerability. It was published on November 28, 2023 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2023-49092?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-49092?

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-2023-49092?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-49092 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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