CVE-2023-46445 : What You Need to Know
CVE-2023-46445 allows attackers to control the AsyncSSH extension info message via a man-in-the-middle attack. Learn about the impact, technical details, and mitigation steps.
An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a 'Rogue Extension Negotiation'.
Understanding CVE-2023-46445
This CVE affects AsyncSSH before version 2.14.1 and poses a risk of extension info message manipulation through a man-in-the-middle attack.
What is CVE-2023-46445?
CVE-2023-46445 is a vulnerability in AsyncSSH that enables attackers to manipulate the extension info message, leading to a 'Rogue Extension Negotiation' scenario.
The Impact of CVE-2023-46445
The vulnerability in AsyncSSH could allow malicious actors to conduct man-in-the-middle attacks and take control of the extension info message, potentially compromising the integrity and security of SSH connections.
Technical Details of CVE-2023-46445
AsyncSSH versions before 2.14.1 are susceptible to this vulnerability, allowing threat actors to exploit the extension info message for malicious purposes.
Vulnerability Description
The issue enables attackers to influence the extension info message, creating a pathway for unauthorized manipulation and interception of SSH communication.
Affected Systems and Versions
All versions of AsyncSSH before 2.14.1 are impacted by this vulnerability, putting systems relying on these versions at risk.
Exploitation Mechanism
Adversaries can carry out Rogue Extension Negotiation attacks by intercepting and modifying the extension info message through man-in-the-middle tactics.
Mitigation and Prevention
To safeguard systems from CVE-2023-46445, immediate actions should be taken to mitigate the threat and implement long-term security measures.
Immediate Steps to Take
Upgrade AsyncSSH to version 2.14.1 or newer to address the vulnerability and prevent unauthorized extension manipulation. Monitor network traffic for any signs of malicious interference.
Long-Term Security Practices
Employ secure communication channels, implement encryption protocols, and regularly update software to prevent exploitation of known vulnerabilities.
Patching and Updates
Stay informed about security advisories and patches released by AsyncSSH. Timely application of updates is crucial to maintaining a secure SSH environment.