Overview
In this blog post, we will examine a critical vulnerability found in Comodo Internet Security Premium 12.3.4.8162, identified as CVE-2025-7096. This vulnerability was found in an unknown code of the file “cis_update_x64.xml” of the component Manifest File Handler. Its exploitation can lead to severe consequences such as potential system compromise or data leakage, putting both personal and business data at risk. Despite the complexity and difficulty of its execution, this exploit has been disclosed to the public, raising the stakes for systems still running on this vulnerable version.
Vulnerability Summary
CVE ID: CVE-2025-7096
Severity: Critical (CVSS: 8.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Comodo Internet Security Premium | 12.3.4.8162
How the Exploit Works
The vulnerability in Comodo Internet Security Premium 12.3.4.8162 primarily relates to the improper validation of the integrity check value in the “cis_update_x64.xml” file. Attackers can manipulate the integrity check value, leading to a breach. Given that the vulnerability can be exploited remotely, attackers can potentially compromise the entire system or lead to data leakage. While the complexity of exploiting this vulnerability is high, the disclosure of the exploit to the public means that motivated attackers could potentially find ways of exploiting it.
Conceptual Example Code
Here’s a conceptual example of how this vulnerability might be exploited. This example does not represent actual exploit code, but rather demonstrates the potential actions an attacker might take:
POST /cis_update_x64.xml HTTP/1.1
Host: target.example.com
Content-Type: application/xml
<update>
<integrityCheckValue>malicious_value</integrityCheckValue>
</update>In this conceptual example, an attacker sends a POST request to the vulnerable endpoint, manipulating the integrity check value in the XML file. This manipulation could allow the attacker to bypass security measures and potentially compromise the system.
Mitigation and Conclusion
Given the severity score of 8.1, users of the affected Comodo Internet Security Premium version are strongly advised to apply the vendor patch as soon as it is available. In the meantime, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. Despite initial contact, the vendor has not yet responded to the disclosure, thus users must remain vigilant and proactive in securing their systems against this vulnerability.