CVE-2023-50257 - CVE House
Back to Database
Status published Critical CVE-2023-50257

Disconnect Vulnerability in RTPS Packets Used by SROS2

Vulnerability Description

eProsima Fast DDS (formerly Fast RTPS) is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Even with the application of SROS2, due to the issue where the data (`p[UD]`) and `guid` values used to disconnect between nodes are not encrypted, a vulnerability has been discovered where a malicious attacker can forcibly disconnect a Subscriber and can deny a Subscriber attempting to connect. Afterwards, if the attacker sends the packet for disconnecting, which is data (`p[UD]`), to the Global Data Space (`239.255.0.1:7400`) using the said Publisher ID, all the Subscribers (Listeners) connected to the Publisher (Talker) will not receive any data and their connection will be disconnected. Moreover, if this disconnection packet is sent continuously, the Subscribers (Listeners) trying to connect will not be able to do so. Since the initial commit of the `SecurityManager.cpp` code (`init`, `on_process_handshake`) on Nov 8, 2016, the Disconnect Vulnerability in RTPS Packets Used by SROS2 has been present prior to versions 2.13.0, 2.12.2, 2.11.3, 2.10.3, and 2.6.7.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-50257

Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Fast-DDS
Vulnerable Versions:
>= 2.12.0, < 2.12.2, >= 2.11.0, < 2.11.3, >= 2.7.0, < 2.10.3, < 2.6.7, FastDDS = 2.10.2-2, RMW - FastDDS = 7.1.1-2, FastDDS = 2.6.6-1, RMW - FastDDS = 6.2.3.1, FastDDS = 2.3.6-6, RMW - FastDDS = 5.0.2-1, FastDDS = 2.1.4-1, RMW - FastDDS = 1.3.2-1

Timeline

Official Publish: February 19th, 2024
Last Modified: August 14th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)