CVE-2023-24012: Data Distribution Service (DDS) Chain of Trust (CoT) violation vulnerability in Open DDS

Published Jan 9, 2025

Updated

An attacker can arbitrarily craft malicious DDS Participants (or ROS 2 Nodes) with valid certificates to compromise and get full control of the attacked secure DDS databus system by exploiting vulnerable attributes in the configuration of PKCS#7 certificate’s validation. This is caused by a non-compliant implementation of permission document verification used by some DDS vendors. Specifically, an improper use of the OpenSSL PKCS7verify function used to validate S/MIME signatures.

Affected Software

1 affected component

OpenDDS OpenDDS

Remediation

Information

Instead of including the Permission CA into the store of trusted certificates to use for chain verification, the Permission CA (and only the Permission CA) should be included in the set of certificates in which to search for signer's certificates. The store of trusted certificates to use for chain verification should then also be set to null. 2) With the store of trusted certificates to use for chain verification set to null, the PKCS7_NOVERIFY flag should then be enabled so any signer's certificates (i.e. only the Permission CA) is not chain verified. 3) Given that only a valid signer's certificate must be the Permission CA, the PKCS7_NOINTERN flag should then be enabled so any set of certificates in the message itself are not searched when locating the signer's certificates.

Event History

Jan 9, 2025

CVE Published

via MITRE·02:36 PM

Data Sourced

via MITRE·02:36 PM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·03:15 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2023-24012?

CVE-2023-24012 is classified as a critical vulnerability due to its potential to allow full control over a secure DDS databus system.

How do I fix CVE-2023-24012?

To mitigate CVE-2023-24012, update to the latest version of OpenDDS that addresses the PKCS#7 certificate validation vulnerabilities.

What systems are affected by CVE-2023-24012?

CVE-2023-24012 affects systems utilizing OpenDDS that rely on secure DDS databus configurations and PKCS#7 certificates.

What are the consequences of exploiting CVE-2023-24012?

Exploitation of CVE-2023-24012 can lead to unauthorized access and full control over the impacted secure DDS databus system.

How does CVE-2023-24012 affect security protocols?

CVE-2023-24012 undermines the integrity of security protocols in DDS by allowing attackers to craft malicious nodes with valid certificates.