CVE-2024-51739 Scanner

iTop is a complete open-source, web-based IT service management tool designed for medium and large enterprises. It is utilized by IT support teams to manage and document IT operations, including services, facilities, and components like software and hardware. The platform enables users to optimize workflows and improve service delivery within organizations. iTop offers a centralized repository to ensure consistent service management processes and reliable information storage. It is available both as a standalone software and through cloud-based solutions. With its customizable features, iTop assists businesses in maintaining control over their IT infrastructure effectively.

User enumeration is a flaw that occurs in applications where an adversary can determine valid usernames and accounts. This specific vulnerability in iTop is associated with its REST endpoint that handles password resets. The vulnerability allows unauthenticated users to verify existing account names by using a reset password feature. By systematically trying multiple usernames, an attacker can confirm the existence of user accounts, which can be leveraged in later stages to facilitate unauthorized access. Detecting and understanding such vulnerabilities is essential for safeguarding sensitive user information.

The vulnerability in iTop is technically centered around its REST API, particularly the 'do_reset_pwd' operation accessible to unauthenticated users. When a non-existent username is submitted, the system returns a response confirming the invalidity of the username. This behavior can be exploited by attackers to determine valid usernames by observing different responses for valid versus invalid usernames. The vulnerability is primarily due to improper handling of API requests, allowing attackers to enumerate users without any prior authentication.

When exploited, this vulnerability can lead to significant security implications. Successful user enumeration can assist attackers in launching targeted attacks against valid accounts, such as brute force attempts or phishing campaigns. The exposure of legitimate usernames can enhance the effectiveness of social engineering attacks. Additionally, it may lead to unauthorized access if attackers successfully compromise identified accounts. Protecting against such enumeration vulnerabilities is crucial to prevent attackers from gaining insights into user data.

REFERENCES

• https://www.synacktiv.com/en/advisories/multiple-vulnerabilities-on-itop
• https://github.com/Combodo/iTop/security/advisories/GHSA-2hmf-p27w-phf9
• https://nvd.nist.gov/vuln/detail/CVE-2024-51739