CVE-2023-50257: Disconnect Vulnerability in RTPS Packets Used by SROS2
First published: Mon Feb 19 2024(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Eclipse | <2.13.0 | |
| Eclipse | >=2.6.7<2.13.0 | |
| Eclipse | >=2.10.3<2.13.0 | |
| Eclipse | >=2.11.3<2.13.0 | |
| Eclipse | >=2.12.2<2.13.0 |
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Reference Links
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-v5r6-8mvh-cp98
- https://github.com/eProsima/Fast-DDS/commit/072cbc9d6a71d869a5cbed1873c0cdd6cf67cda4
- https://github.com/eProsima/Fast-DDS/commit/e1869863c06db7fbb366ae53760fbe6e754be026
- https://github.com/eProsima/Fast-DDS/commit/f07a0213e655202188840b864be4438ae1067a13
- https://github.com/eProsima/Fast-DDS/commit/f2e5ceae8fbea0a6c9445a366faaca0b98a8ef86
Frequently Asked Questions
What is the severity of CVE-2023-50257?
The severity of CVE-2023-50257 is rated as critical due to the potential for data exposure between nodes.
How do I fix CVE-2023-50257?
To fix CVE-2023-50257, update eProsima Fast DDS to version 2.14.0 or later which addresses the encryption issue.
What versions of Fast DDS are affected by CVE-2023-50257?
CVE-2023-50257 affects eProsima Fast DDS versions from 2.6.7 up to but not including 2.13.0.
What impact does CVE-2023-50257 have on data security?
CVE-2023-50257 impacts data security by failing to encrypt critical values used for node disconnection.
Is there a workaround for CVE-2023-50257 if I cannot update immediately?
Currently, there are no official workarounds for CVE-2023-50257 and upgrading to a fixed version is recommended.
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