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CVE-2023-24823

9.8 · CRITICAL

RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames.

Published Apr 24, 2023CWE-787EPSS 0.98%

Overview

CVE-2023-24823 is a critical-severity vulnerability. It was published on April 24, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a type confusion between IPv6 extension headers and a UDP header. This occurs while encoding a 6LoWPAN IPHC header. The type confusion manifests in an out of bounds write in the packet buffer. The overflow can be used to corrupt other packets and the allocator metadata. Corrupting a pointer will easily lead to denial of service. While carefully manipulating the allocator metadata gives an attacker the possibility to write data to arbitrary locations and thus execute arbitrary code. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.

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/RIOT-OS/RIOT/pull/18817/commits/4a081f86616cb5c9dd0b5d7b286da03285d1652aGitHubgithub.com/RIOT-OS/RIOT/pull/18820/commits/dafc397fdc3655aeb5c7b9963a43f1604c6a2062GitHubgithub.com/RIOT-OS/RIOT/security/advisories/GHSA-jwmv-47p2-hgq2GitHubgithub.com/RIOT-OS/RIOT/pull/18817/commits/4a081f86616cb5c9dd0b5d7b286da03285d1652aGitHubgithub.com/RIOT-OS/RIOT/pull/18820/commits/dafc397fdc3655aeb5c7b9963a43f1604c6a2062GitHubgithub.com/RIOT-OS/RIOT/security/advisories/GHSA-jwmv-47p2-hgq2

How CyberStrike helps

Frequently asked questions

What is CVE-2023-24823?

CVE-2023-24823 is a critical-severity vulnerability. It was published on April 24, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-24823?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-24823?

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-2023-24823?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-24823 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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