Amazon’s threat intelligence uncovers a cyber-espionage campaign exploiting zero-day vulnerabilities in Cisco and Citrix systems, targeting critical identity and network access infrastructure. The campaign demonstrates the increasing risk of advanced persistent threats leveraging previously unknown flaws to gain unauthorized access. #CVE-2025-5777 #CVE-2025-20337
Keypoints
- Threat actors exploited zero-day vulnerabilities in Cisco ISE and Citrix systems before patches were available.
- The attackers deployed a custom in-memory web shell disguised as legitimate Cisco components to maintain persistence.
- Monitoring tools like Amazon’s MadPot honeypot detected early exploitation attempts, highlighting the importance of threat detection.
- Defensive strategies include network segmentation, monitoring for suspicious activity, and minimizing internet-facing exposure of critical systems.
- The campaign underscores the need for an advanced, proactive cybersecurity posture to protect high-value infrastructure.
Read More: https://thecyberexpress.com/cve-2025-20337-cve-2025-5777-exploits/