CVE-2024-21650 Scanner

XWiki is an open-source enterprise wiki platform used by businesses, educators, and enthusiasts to create and share rich content and collaborative applications. It provides powerful tools for content creation, management, and collaboration, crucial for organizations looking to streamline their documentation and processes. XWiki's flexibility and scalability make it suitable for both small teams and large corporations. The platform supports a broad range of use cases, including knowledge management, project tracking, and team collaboration. Its rich API and extensibility allow developers to create custom solutions tailored to business needs. Being open source, it fosters a community-driven approach, encouraging contributions and innovation.

The detected vulnerability is a Remote Code Execution (RCE) that can be exploited via the user registration process in XWiki. It allows attackers to execute arbitrary code on the host server by injecting crafted payloads into registration fields. This vulnerability poses a significant risk as it can be exploited without authentication, potentially leading to severe damage or data loss. RCE vulnerabilities are critical because they give attackers the ability to control the affected server or system remotely. Securing such vulnerabilities is essential to maintain the integrity and confidentiality of the data and systems. It highlights the importance of validating user inputs and implementing strict checks on input fields.

Technically, the vulnerability is present in the user registration feature where input fields 'first name' and 'last name' are exploited for code injection. Attackers craft malicious payloads that enable arbitrary code execution on the server. The registration process does not adequately sanitize or escape inputs, leading to this severe vulnerability. Exploitation can result in unauthorized actions or retrieval of sensitive data by executing commands on the server. It is imperative to fix input validation flaws and sanitize inputs to prevent injection attacks. The vulnerability surfaces when installations allow user registration for guest access without proper scrutiny of submitted data.

Exploitation of this vulnerability can lead to complete system compromise, allowing attackers to install malware, steal sensitive information, or disrupt services. It enables malicious actors to execute any command on the server, potentially leading to data breaches or loss of control over affected systems. Organizations could face legal and reputational damage due to exposed customer data or business interruptions. Moreover, attackers might use compromised servers as part of a broader attack strategy, including launching further attacks on other connected systems. Full remediation is vital to protect against unauthorized access and maintain trust in system integrity.

REFERENCES

• https://jira.xwiki.org/browse/XWIKI-21173
• https://nvd.nist.gov/vuln/detail/CVE-2024-21650