A Cloud Firewall protects against a variety of network-based threats and vulnerabilities, acting as a barrier between your cloud resources and potential attackers. Here are the key vulnerabilities it addresses:
Unauthorized Access: It blocks malicious IPs or users from accessing your cloud services, such as databases, APIs, or virtual machines.
Example: Preventing hackers from scanning and exploiting open SSH (port 22) or RDP (port 3389) ports.
DDoS Attacks: Mitigates Distributed Denial-of-Service attacks by filtering out excessive or suspicious traffic before it reaches your applications.
Example: A sudden spike in traffic from multiple sources is identified and dropped, ensuring legitimate users can still access the service.
Malware and Intrusion Attempts: Detects and blocks known malicious patterns, such as exploit attempts targeting unpatched software vulnerabilities.
Example: Stopping a botnet from scanning for vulnerable web servers using known attack signatures.
Data Exfiltration: Prevents unauthorized data transfers out of your cloud environment, protecting sensitive information from being stolen.
Example: Blocking outbound connections to suspicious domains or IP ranges that might indicate data theft.
Zero-Day Exploits: Some advanced firewalls use behavioral analysis to detect and block unknown threats before they cause damage.
Example: Identifying unusual traffic patterns that deviate from normal application behavior, even if the specific exploit is not yet known.
For enhanced protection, Tencent Cloud's Security Products like Tencent Cloud Web Application Firewall (WAF) and Anti-DDoS Service provide specialized defenses against web-based attacks and large-scale traffic floods, complementing traditional firewall capabilities.