Description
Security Point (Windows) of MaLion and MaLionCloud contains a heap-based buffer overflow vulnerability in processing Content-Length. Receiving a specially crafted request from a remote unauthenticated attacker could lead to arbitrary code execution with SYSTEM privilege.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-199587
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-199587 is a heap-based buffer overflow in the processing of the Content-Length header within Security Point (Windows) of MaLion and MaLionCloud. This vulnerability allows a remote, unauthenticated attacker to execute arbitrary code with SYSTEM privileges. The CVSS (Common Vulnerability Scoring System) base score of 9.3 indicates a critical severity level. The vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N highlights the following characteristics:
- Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
- Authentication (AT): None (N) - No authentication is required to exploit the vulnerability.
- Privileges Required (PR): None (N) - No special privileges are needed.
- User Interaction (UI): None (N) - No user interaction is required.
- Confidentiality (VC): High (H) - The vulnerability significantly impacts confidentiality.
- Integrity (VI): High (H) - The vulnerability significantly impacts integrity.
- Availability (VA): High (H) - The vulnerability significantly impacts availability.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves sending a specially crafted request with a malformed Content-Length header to the affected system. This can be achieved through various means, including:
- Direct Network Attack: An attacker can send the malicious request directly to the vulnerable service over the network.
- Phishing and Social Engineering: Tricking users into visiting a malicious website that sends the crafted request to the vulnerable system.
- Malicious Insiders: Internal users with network access can exploit the vulnerability without needing special privileges.
Exploitation methods may include:
- Buffer Overflow: Crafting a request that overflows the heap buffer, leading to code execution.
- Shellcode Injection: Injecting shellcode into the overflowed buffer to gain control of the system.
- Remote Code Execution (RCE): Executing arbitrary code with SYSTEM privileges, allowing full control over the affected system.
3. Affected Systems and Software Versions
The vulnerability affects the following systems and software versions:
- Security Point (Windows) of MaLion: Versions prior to Ver.7.1.1.9
- Security Point (Windows) of MaLionCloud: Versions prior to Ver.7.2.0.1
These versions are vulnerable to the heap-based buffer overflow and should be updated immediately.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Ensure that all affected systems are updated to the latest versions (Ver.7.1.1.9 for Security Point (Windows) of MaLion and Ver.7.2.0.1 for Security Point (Windows) of MaLionCloud).
- Network Segmentation: Implement network segmentation to limit the attack surface and reduce the risk of lateral movement.
- Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious network activity and detect potential exploitation attempts.
- Firewall Configuration: Configure firewalls to restrict access to the vulnerable services and limit exposure to trusted networks.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.
5. Impact on European Cybersecurity Landscape
The critical nature of this vulnerability poses a significant risk to European organizations using the affected software. The potential for remote code execution with SYSTEM privileges can lead to severe data breaches, loss of sensitive information, and disruption of critical services. Organizations in sectors such as finance, healthcare, and government are particularly at risk due to the sensitive nature of the data they handle.
6. Technical Details for Security Professionals
For security professionals, the following technical details are essential:
- Vulnerability Type: Heap-based buffer overflow
- Affected Component: Processing of
Content-Lengthheader - Exploitation: Crafted request leading to arbitrary code execution
- Privileges: SYSTEM level
- Detection: Monitor for unusual network traffic patterns and anomalies in the
Content-Lengthheader processing. - Response: Implement immediate patching and update affected systems. Conduct thorough incident response procedures if exploitation is detected.
Conclusion
The vulnerability described in EUVD-2025-199587 is critical and requires immediate attention from cybersecurity professionals. Organizations should prioritize patching affected systems and implementing robust mitigation strategies to protect against potential exploitation. The impact on the European cybersecurity landscape underscores the need for vigilant monitoring and proactive security measures.