CVE-2025-23114 Overview
A vulnerability in Veeam Updater component allows Man-in-the-Middle attackers to execute arbitrary code on the affected server. This issue occurs due to a failure to properly validate TLS certificate.
Critical Impact
This vulnerability allows attackers to potentially gain full control over the affected server, posing significant risk to data confidentiality, integrity, and availability.
Affected Products
- Veeam Backup & Replication
- Veeam Agent for Microsoft Windows
- Veeam ONE
Discovery Timeline
- 2025-02-05 - CVE-2025-23114 published to NVD
- 2025-03-13 - Last updated in NVD database
Technical Details for CVE-2025-23114
Vulnerability Analysis
The vulnerability is classified under CWE-295, where the application fails to properly validate the authenticity of TLS certificates, allowing malicious actors to perform a Man-in-the-Middle attack. By exploiting this weakness, an attacker can intercept and modify network traffic between the Veeam server and client, leading to arbitrary code execution.
Root Cause
The absence of stringent certificate validation allows unauthorized certificates to be accepted, enabling potential interception of encrypted communications.
Attack Vector
This vulnerability requires network-level access and can be exploited remotely via a Man-in-the-Middle attack.
# Example exploitation code (sanitized)
import ssl
import socket
hostname = 'target.veeam.server'
context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
context.load_verify_locations('malicious.crt')
sock = socket.create_connection((hostname, 443))
ssl_sock = context.wrap_socket(sock, server_hostname=hostname)
Detection Methods for CVE-2025-23114
Indicators of Compromise
- Unexpected outgoing connections from Veeam server
- Alteration of network traffic
- SSL certificate anomalies
Detection Strategies
Deploy intrusion detection systems (IDS) to monitor for unusual traffic patterns and SSL discrepancies. SentinelOne’s advanced network detection capabilities can identify and flag suspicious communication indicative of a Man-in-the-Middle attack.
Monitoring Recommendations
Regularly audit network traffic for signs of interception and verify all SSL/TLS handshakes for authenticity. Utilize SentinelOne to automate these checks and provide alerts on deviations from expected behavior.
How to Mitigate CVE-2025-23114
Immediate Actions Required
- Update Veeam software to the latest patched version
- Implement strict network segmentation
- Enforce strong TLS configuration
Patch Information
Refer to Veeam KB4712 for detailed patch information and update instructions.
Workarounds
As a temporary measure, implement strict network monitoring and deploy transparent proxies that enforce certificate validation.
# Configuration example
iptables -A FORWARD -p tcp --dport 443 -m state --state NEW -j ACCEPT
iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
