API security focuses on protecting application interfaces from unauthorized access, data exposure, abuse, and flaws in authentication or design.
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Background for this topic.
Application Programming Interfaces (APIs) are sets of rules that allow software applications to communicate and exchange data, often enabling functionality across different systems or services. APIs define how requests and responses are structured, making it possible for programs to interact without direct user involvement. In cybersecurity, APIs are commonly exposed over networks as endpoints that handle sensitive operations like data retrieval, user authentication, or transaction processing.
APIs increase the attack surface by exposing endpoints that attackers can target with unauthorized access attempts, injection attacks, or denial-of-service. Common risks include weak or missing authentication, insufficient input validation, and improper rate limiting. Effective API security requires strong authentication protocols (e.g., OAuth), strict input validation to prevent injection, rate limiting to mitigate abuse, and comprehensive logging to detect anomalies. Protecting APIs is critical to prevent data leaks, privilege escalation, and service disruption in interconnected environments.
A flaw in the REST API of Cisco's SD_WAN vManage software could allow remote, unauthenticated attackers to perform data exfiltration.
The Cisco SD-WAN vManage management software is impacted by a flaw that allows an unauthenticated, remote attacker to gain read or limited write permissions to the configuration of the affected instance. [...]
QuickBlox users should update to the latest version of the platform in order to protect against several avenues of exploitation.
Securing APIs is specialized work. Here's what organizations should look for when selecting an outside partner.