CVE-2024-51329 identifies a Host header injection vulnerability in Agile-Board version 1.0. Host header injection occurs when an application uses the Host header from HTTP requests without proper validation, allowing attackers to manipulate it. In this case, the vulnerability enables attackers to craft malicious password reset links that, when clicked by a user, leak the password reset token. This token is a critical secret used to authorize password changes, and its exposure can lead to unauthorized account access. The vulnerability requires no authentication (AV:N) but does require user interaction (UI:R), such as clicking a malicious link. The attack complexity is low (AC:L), meaning it is straightforward to exploit. The CVSS score of 8.1 reflects a high severity due to the high impact on confidentiality and integrity, though availability is unaffected. The vulnerability is categorized under CWE-94, which generally relates to code injection issues, indicating that improper input handling leads to this flaw. No patches or known exploits are currently available, highlighting the need for proactive defensive measures. The vulnerability affects Agile-Board 1.0, a project management tool, which may be deployed in various organizational environments.

The primary impact of CVE-2024-51329 is the compromise of user account security through unauthorized access to password reset tokens. Attackers can leverage this to reset passwords and gain control over user accounts, potentially accessing sensitive project data and internal communications managed via Agile-Board. This breach of confidentiality and integrity can lead to data theft, unauthorized modifications, and further lateral movement within affected organizations. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to exploit it. The lack of availability impact means systems remain operational, but the trustworthiness of user accounts and data integrity is severely undermined. Organizations with Agile-Board deployments, especially those handling sensitive or regulated data, face increased risk of data breaches and compliance violations. The absence of patches increases exposure duration, raising the likelihood of exploitation once attackers develop working exploits.

To mitigate CVE-2024-51329, organizations should immediately implement strict validation and sanitization of the Host header in HTTP requests within Agile-Board or any reverse proxies/load balancers in front of it. Specifically, enforce a whitelist of allowed Host header values matching the legitimate domain names. Additionally, modify the password reset functionality to avoid relying on the Host header for token generation or validation. Employ multi-factor authentication (MFA) to reduce the impact of compromised password reset tokens. Educate users to be cautious about clicking unsolicited password reset links and implement email filtering to detect phishing attempts. Monitor logs for unusual password reset requests and anomalous Host header values. If possible, isolate Agile-Board instances behind VPNs or internal networks to limit exposure. Finally, maintain close communication with Agile-Board vendors or community for forthcoming patches or updates addressing this vulnerability.