Cisco Cucm Hacking -- Github [portable] Link

: Another inventory tool that retrieves registered phones from CUCM and parses their serial numbers via the phone's web interface. It processes about 1000 phones in 15-30 seconds and supports a wide range of Cisco phone models.

Configure strict Calling Search Spaces (CSS) and Partitions to ensure that external incoming trunks cannot loop back out to public networks (preventing toll fraud). Cisco CUCM hacking -- GitHub

This attack path highlights how seemingly low-risk misconfigurations—like leaving phone web interfaces exposed or failing to encrypt configuration files—can cascade into a complete system compromise. It underscores that "hacking CUCM" is often less about complex zero-days and more about chaining together a series of basic weaknesses. : Another inventory tool that retrieves registered phones

CUCM uses an API called AXL (Administrative XML Layer). Many old versions (12.x and below) are vulnerable to SQL injection or weak SOAP authentication. Many old versions (12

CUCM relies heavily on an IBM Informix database. Flaws within the web interfaces or AXL API endpoints have occasionally allowed SQL injection. Attackers use these flaws to extract application database tables, which contain user hashes, device credentials, and speed-dial configurations. 3. Finding CUCM Security Tools on GitHub