Overview
CVE-2022-4984 identifies a critical SQL injection vulnerability affecting multiple versions of ZenTao, including ZenTao Biz, ZenTao Max, and ZenTao Open Source Edition. Specifically, versions prior to 6.5 of ZenTao Biz, versions prior to 3.0 of ZenTao Max, and versions prior to 16.5 and 16.5.beta1 of ZenTao Open Source Edition are susceptible. The vulnerability resides within the login functionality and allows a remote, unauthenticated attacker to potentially execute arbitrary SQL commands, leading to sensitive data exposure.
Technical Details
The vulnerability lies in the insufficient validation of the ‘account’ parameter within the /zentao/user-login.html endpoint. The application fails to properly sanitize or escape this parameter before incorporating it into a database query. This lack of input validation allows an attacker to inject malicious SQL code into the ‘account’ field. By crafting a specific SQL payload, an attacker can bypass authentication, extract sensitive information such as user credentials and application data, or even modify the database.
CVSS Analysis
While the provided information indicates that the CVSS score is not available (N/A), given the nature of SQL injection and the potential for unauthenticated remote exploitation and sensitive data exposure, this vulnerability is likely to be classified as high to critical severity. A proper CVSS score would consider factors like attack vector, attack complexity, privileges required, user interaction, scope, confidentiality impact, integrity impact, and availability impact. A complete CVSS score from a reliable source should be consulted when it becomes available.
Possible Impact
Successful exploitation of CVE-2022-4984 can have significant consequences, including:
- Data Breach: Exposure of sensitive data, including user credentials, application secrets, and potentially business-critical information.
- Account Takeover: Attackers can gain unauthorized access to user accounts, potentially escalating privileges to administrative roles.
- System Compromise: In some cases, SQL injection can be leveraged to execute arbitrary commands on the underlying server, leading to complete system compromise.
- Reputational Damage: A data breach can severely damage an organization’s reputation and erode customer trust.
Mitigation and Patch Steps
To mitigate the risk of CVE-2022-4984, it is crucial to upgrade ZenTao to a patched version. ZenTao has released updated versions to address this vulnerability:
- Upgrade ZenTao Biz to version 6.5 or later.
- Upgrade ZenTao Max to version 3.0 or later.
- Upgrade ZenTao Open Source Edition to version 16.5 or later.
- Consider upgrading to the latest stable version for the best security posture.
You can download the latest versions from the official ZenTao website. Direct links are provided in the references section below.
In addition to patching, consider the following security best practices:
- Web Application Firewall (WAF): Implement a WAF to detect and block malicious SQL injection attempts.
- Input Validation: Implement robust input validation and sanitization on all user-supplied data.
- Principle of Least Privilege: Ensure that database user accounts have only the necessary privileges.
- Regular Security Audits: Conduct regular security audits and penetration testing to identify and address vulnerabilities.
