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Scripts that gather network details, phone information, and SIP traffic.
Using the trusted position of the CUCM server to lateral move into restricted corporate subnets. Cisco CUCM hacking -- GitHub
# Common CUCM ports nmap -p 22,80,443,8443,2427,2428,2000,5060,5061 <target>
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. This public link is valid for 7 days
Another critical vulnerability, tracked as CVE‑2025‑20309, involves the presence of static, hardcoded root credentials reserved for development use in certain Cisco Unified CM Engineering Special (ES) releases. These credentials cannot be changed or deleted. An unauthenticated, remote attacker can use them to log in to an affected system and execute arbitrary commands with full root privileges. Cisco has since removed the backdoor account in fixed releases, but administrators must verify that no vulnerable ES releases remain in their environment. A key indicator of compromise (IoC) is a successful SSH login by the root user, which appears in /var/log/active/syslog/secure .
Cisco Unified Communications Manager (CUCM) serves as the core call processing component in many enterprise voice and video networks. Given its central role, it has naturally become an attractive target for security researchers and malicious actors. GitHub has emerged as a primary repository for proof-of-concept (PoC) exploits, penetration testing tools, and research findings related to CUCM hacking. From reconnaissance tools that scrape sensitive configuration files to critical remote code execution (RCE) vulnerabilities, the open-source collection on GitHub provides a window into how these systems can be compromised. This article explores the landscape of CUCM hacking on GitHub, including notable repositories, the most severe vulnerabilities, the cat-and-mouse game of responsible disclosure, and how defenders can use this information to better protect their systems. Can’t copy the link right now
GitHub repositories dedicated to Cisco escape techniques document methods to break out of the restricted VOS CLI shell. Once escaped into the root bash shell, a tester can: Extract the master database encryption keys.
: A multi-threaded tool designed to automatically download and parse Cisco phone configuration files from TFTP or HTTP servers. It can extract SSH credentials, usernames, and passwords that are often stored in plaintext. iCULeak.py
Limit access to the AXL API to only necessary IP addresses and ensure strong authentication is enabled.