Bitdefender GravityZone Console PHP Vulnerability Let Attackers Execute Arbitrary Commands

A critical security vulnerability has been discovered in Bitdefender GravityZone Console that could allow remote attackers to execute arbitrary commands on affected systems. 

The flaw tracked as CVE-2025-2244 has a CVSS score of 9.5. It stems from an insecure PHP deserialization issue that poses significant risks to enterprise security infrastructures relying on this widely used endpoint protection solution.

Researchers have identified a severe vulnerability (VA-12634) in Bitdefender GravityZone Console’s email processing functionality. 

Insecure PHP Deserialization Issue in GravityZone Console

The flaw exists specifically in the sendMailFromRemoteSource method within the Emails.php file, where the application unsafely uses PHP’s unserialize() function on user-controlled input without proper validation.

The vulnerable code pattern appears as follows:

This implementation allows attackers to submit specially crafted serialized PHP objects that, when processed by the vulnerable function, can trigger PHP object injection. 

Through this attack vector, malicious actors can exploit PHP’s magic methods to perform file operations and ultimately achieve arbitrary command execution on the hosting server.

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The vulnerability was discovered and reported by security researcher Nicolas Verdier (@n1nj4sec) as part of responsible disclosure.

Vulnerability Details

The vulnerability has received the highest severity rating due to its network exploitability and significant impact potential. 

According to the CVSS 4.0 vector (AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H), the vulnerability:

• Requires no authentication or user interaction
• Can be exploited remotely over the network
• Provides attackers with complete control over affected systems
• Potentially exposes all data managed by GravityZone Console

Successful exploitation allows attackers to write malicious files to the system and execute arbitrary commands with the same privileges as the web server process. 

This could lead to complete compromise of the GravityZone management console and potentially provide a foothold for lateral movement within the organization’s network.

The summary of the vulnerability is given below:

Mitigation Steps

Bitdefender has addressed this vulnerability in GravityZone Console version 6.41.2-1, which has been released as an automatic update. 

Organizations using the affected product should verify that their installations have been successfully updated to this version or later.

The fix implements proper input validation before deserialization and adopts safer alternatives to PHP’s native unserialize() function. Security administrators should also:

• Monitor systems for unexpected file creation or modification
• Review logs for suspicious activities related to the GravityZone Console
• Implement network segmentation to limit access to management interfaces
• Apply the principle of least privilege to service accounts running security applications

This vulnerability highlights the persistent security risks associated with insecure deserialization, which remains on the OWASP Top 10 list of web application security risks. 

PHP object injection vulnerabilities continue to be discovered in enterprise applications, emphasizing the need for secure coding practices and regular security assessments.

Organizations utilizing Bitdefender GravityZone Console should prioritize this update, given the vulnerability’s critical nature and the sensitive role that security management platforms play in organizational defense.

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