Cisco Cucm Hacking -- Github Guide

# Use VIRL/CML or GNS3 with CUCM OVA
resources:
  - RAM: 8GB minimum
  - HDD: 80GB
  - VMware ESXi or Workstation

Overview

Common attack vectors demonstrated on GitHub

Representative GitHub resources (types)

Impact

Mitigations (actionable)

Responsible usage note

If you want, I can:

(Invoking related search suggestions.)

Hacking research for Cisco Unified Communications Manager (CUCM) on GitHub primarily focuses on exploiting unauthenticated access, weak credential management, and web interface vulnerabilities. Researchers use these repositories to demonstrate how attackers can gain root access to the underlying Linux appliance or intercept sensitive VoIP data. Key Hacking & Security Repositories

Security professionals use several specialized tools on GitHub to test CUCM environments:

iCULeak.py: A Python tool used to find and extract credentials from phone configuration files.

Function: It scans TFTP servers where CUCM stores VoIP phone configuration files.

Vulnerability: These files often contain sensitive data, including phone SSH/admin credentials in plaintext due to browser autofill or password manager errors.

FastVulnVerify: An advanced modular framework for automating vulnerability verification during penetration testing.

Purpose: It automates tests for common IP and port-based attack vectors, reducing manual effort during the discovery phase of a CUCM assessment.

RouterSploit (unified_multi_path_traversal.py): An exploit module within the RouterSploit framework targeting path traversal in CUCM.

Impact: Successful exploitation allows an attacker to read arbitrary files from the filesystem of the CUCM appliance.

fredless/Cisco CUCM Hacking: A GitHub Gist that provides practical techniques for disabling services like the SmartLicenseMgr (SLM) and preventing the Disaster Recovery Framework (DRF) from unregistering critical components. Critical Vulnerabilities Tracked on GitHub Cisco CUCM hacking -- GitHub

The GitHub Advisory Database catalogs high-impact CVEs that form the basis for many exploit scripts: CVE / Advisory Description CVE-2024-20253 Critical (RCE)

Unauthenticated remote code execution due to improper processing of user data in memory. CVE-2025-20309 Root Access

Allows unauthenticated remote attackers to log in using a root account with default static credentials. GHSA-4c73-jxqq-mjrg RCE (SOAP API)

Authenticated RCE via the SOAP API endpoint due to improper sanitization of user-supplied input. GHSA-83p3-3frh-4fjj Impersonation

Exploits duplicate manufactured keys to perform machine-in-the-middle attacks and impersonate IP phones. Advanced Exploitation Techniques

Detailed research from firms like Synacktiv highlights complex attack chains documented in GitHub-hosted advisories: unified_multi_path_traversal.py - GitHub

This guide explores resources on for auditing and testing the security of Cisco Unified Communications Manager (CUCM)

environments. These tools generally focus on exploiting misconfigurations in phone provisioning and identifying unpatched vulnerabilities. Credential & Data Extraction Tools

These tools are designed to automate the discovery of sensitive data from CUCM-managed environments, often by targeting the TFTP servers where phones retrieve configuration files. SeeYouCM-Thief (trustedsec/SeeYouCM-Thief)

: A multi-threaded tool used to automatically download and parse Cisco phone configuration files for SSH credentials Automated Scanning

: Supports multi-threaded downloads with 40 parallel worker threads Brute Forcing

: Can brute force up to 4,096 MAC variations to find hidden phone configurations User Enumeration

: Includes features to extract usernames via the CUCM User Data Services (UDS) API iCULeak.py (llt4l/iCULeak.py)

: Extracts credentials from configuration files stored on TFTP servers. It specifically targets a common issue where administrators' plaintext credentials

are inadvertently saved into phone SSH fields by browser autofill or password managers cucm-exporter (PresidioCode/cucm-exporter)

: While intended for administration, this tool can be used to quickly export full lists of users and phone numbers to CSV files if administrative AXL credentials are obtained Vulnerability Exploit Modules

Specific GitHub repositories host modules for broader exploitation frameworks that target CUCM services. Routersploit (threat9/routersploit) : Contains a module for Path Traversal # Use VIRL/CML or GNS3 with CUCM OVA

vulnerabilities in CUCM, allowing an attacker to read arbitrary files from the system GitHub Advisory Database : Tracks critical CUCM vulnerabilities, such as: GHSA-h4w3-hxw6-99q7 : A critical unauthenticated Remote Code Execution (RCE)

flaw allowing attackers to gain root access via crafted HTTP requests GHSA-3q7w-9xf2-2f3g : Exposure of static root credentials reserved for development that cannot be changed or deleted Auditing & Defensive Cheat Sheets

Useful for post-exploitation reconnaissance or security hardening. CUCM CLI Cheat Sheet (yuriskinfo/cheat-sheets) : Provides essential CLI commands for checking logged-in admins , disk usage, and user password expiration status Cisco Security IoC Guide : Outlines Indicators of Compromise

(IoCs) to look for, such as unauthorized root SSH logins logged in /var/log/active/syslog/secure

Cisco Unified Communications Manager (CUCM) security research often centers on misconfigurations that expose sensitive data, particularly via phone configuration files. On GitHub, security professionals and researchers host various tools and scripts designed to audit, exploit, or secure these environments. Notable GitHub Tools for CUCM Security Auditing

Researchers use these tools to identify common attack vectors such as credential leakage and improper API access.

SeeYouCM-Thief: A popular multi-threaded tool that automatically downloads and parses configuration files from Cisco phone systems. It searches for SSH credentials, passwords, and usernames often stored in plaintext. It also includes features for MAC address brute-forcing and user enumeration via the CUCM User Data Services (UDS) API. Find it here: SeeYouCM-Thief on GitHub.

iCULeak.py: A focused Python script that extracts credentials from phone configuration files stored on TFTP servers. It specifically addresses issues where browsers or password managers might autofill sensitive CUCM credentials into configuration fields. Find it here: iCULeak.py on GitHub.

Routersploit (CUCM Modules): This exploitation framework contains modules specifically for CUCM, such as the unified_multi_path_traversal.py script, which exploits path traversal vulnerabilities to read files from the filesystem.

Find the module here: Unified Multi Path Traversal on GitHub.

Cisco-UCM-SQLi-Scripts: A collection of scripts used to exploit CVE-2019-15972, an authenticated SQL injection (SQLi) vulnerability in earlier versions of CUCM. Find it here: Cisco-UCM-SQLi-Scripts on GitHub. Vulnerability Research & Advisories

Several repositories and Gists provide deeper insights into specific CUCM vulnerabilities and "hacking" techniques:

Cisco CUCM Hacking Gist: A technical Gist detailing commands for disabling specific services like the Smart License Manager (SLM) and preventing system registrations. View the Gist: Cisco CUCM hacking - GitHub Gist.

GitHub Security Advisories: GitHub tracks critical CUCM vulnerabilities, such as:

GHSA-3q7w-9xf2-2f3g: A high-severity vulnerability with a CVSS score of 10.0.

GHSA-4c73-jxqq-mjrg: An authenticated remote code execution vulnerability in the SOAP API endpoint. Defensive & Management Tools

While primarily for administrators, these tools are used in security contexts to audit configurations and automate compliance: unified_multi_path_traversal.py - GitHub Overview

Hacking content related to Cisco Unified Communications Manager (CUCM)

on GitHub primarily focuses on exploiting misconfigurations in phone systems, credential harvesting, and bypassing license restrictions. Popular Pentesting & Exploitation Tools

Researchers use these tools to identify weaknesses in how CUCM manages and serves configuration files to VoIP endpoints. SeeYouCM-Thief

: 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

: Similar to SeeYouCM-Thief, this script extracts credentials from configuration files and can even attempt to verify if leaked credentials are valid against Active Directory (AD). unified_multi_path_traversal.py

: Part of the RouterSploit framework, this module exploits path traversal vulnerabilities to read arbitrary files from the CUCM filesystem. Known Critical Vulnerabilities (GitHub Advisories)

GitHub's advisory database tracks critical CUCM vulnerabilities that could lead to full system takeover. Static Root Credentials (CVE-2025-20309)

: A maximum-severity vulnerability where unauthenticated remote attackers could log in using hard-coded root credentials that cannot be changed or deleted. Remote Code Execution (RCE)

: Vulnerabilities in the web-based management interface allow attackers to execute arbitrary commands by sending crafted HTTP requests, potentially elevating privileges to root. CLI Command Injection

: Authenticated attackers with administrative access can exploit improper validation in CLI arguments to execute operating system commands as root. Workarounds & "Hacks"

Some community-shared content focuses on bypassing functional limitations rather than security exploitation.

A sophisticated VoIP attack using GitHub repos might look like this:

All of these steps are executed using code found freely on GitHub.

Repository examples: cucm-creds, AXL-SQL-injection

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.

# Common CUCM ports
nmap -p 22,80,443,8443,2427,2428,2000,5060,5061 <target>

Repository example: cucm-tftp-harvest

CUCM stores phone configuration files (XML) on a TFTP server. These files often contain Line Group passwords, VoIP VLAN IDs, and sometimes shared secrets.

A simple search for "CUCM exploit" or "Cisco VOIP tool" on GitHub reveals dozens of repositories. Below are the most significant categories and tools you will encounter.

Loading "log" application component

Loading "request" application component

Loading "urlManager" application component

Loading "cache" application component

Running filter PostController.filteraccessControl()

Loading "user" application component

Loading "session" application component

Loading "clientScript" application component

Loading "widgetFactory" application component

Loading "assetManager" application component

Post.count()

Loading "db" application component

Opening DB connection

Querying SQL: SHOW FULL COLUMNS FROM `post`

Querying SQL: SHOW CREATE TABLE `post`

Post.count() eagerly

Querying SQL: SELECT COUNT(DISTINCT `t`.`id`) FROM `post` `t`  WHERE
(rating>9 AND status=2)

Post.findAll()

Querying SQL: SELECT `t`.`id` AS `t0_c0`, `t`.`title` AS `t0_c1`,
`t`.`author` AS `t0_c2`, `t`.`author_link` AS `t0_c3`, `t`.`source` AS
`t0_c4`, `t`.`content` AS `t0_c5`, `t`.`purchase_url` AS `t0_c6`,
`t`.`genre` AS `t0_c7`, `t`.`flv_link` AS `t0_c8`, `t`.`tags` AS `t0_c9`,
`t`.`query` AS `t0_c10`, `t`.`status` AS `t0_c11`, `t`.`create_time` AS
`t0_c12`, `t`.`update_time` AS `t0_c13`, `t`.`author_id` AS `t0_c14`,
`t`.`plays` AS `t0_c15`, `t`.`itunes_clicks` AS `t0_c16`,
`t`.`amazon_clicks` AS `t0_c17`, `t`.`emusic_clicks` AS `t0_c18`,
`t`.`image_link` AS `t0_c19`, `t`.`rating` AS `t0_c20`, `t`.`loved_count`
AS `t0_c21`, `t`.`fail_count` AS `t0_c22`, `t`.`offered` AS `t0_c23` FROM
`post` `t`  WHERE (rating>9 AND status=2) ORDER BY create_time DESC LIMIT
15

Querying SQL: SHOW FULL COLUMNS FROM `user_favorites`

Querying SQL: SHOW CREATE TABLE `user_favorites`

Querying SQL: SELECT `t`.`post_id` AS `c`, COUNT(*) AS `s` FROM
`user_favorites` `t` WHERE (user_id=0) AND (`t`.`post_id` IN ('3062',
'3057', '3058', '3059', '3060', '3061', '3056', '3055', '3053', '3054',
'3052', '3051', '3050', '3049', '3048')) GROUP BY `t`.`post_id`

Loading "coreMessages" application component