Description
A vulnerability was found in MicroWorld eScan Antivirus 7.0.32 on Linux. It has been rated as critical. This issue affects some unknown processing of the file rtscanner of the component Quarantine Handler. The manipulation leads to os command injection. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-1872
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in MicroWorld eScan Antivirus 7.0.32 on Linux is rated as critical. The CVSS (Common Vulnerability Scoring System) base score of 9.2 indicates a high severity due to the potential for remote command injection, which can lead to significant impacts on confidentiality, integrity, and availability. The attack complexity is high, and the exploitation is known to be difficult, but the public disclosure of the exploit increases the risk significantly.
2. Potential Attack Vectors and Exploitation Methods
The vulnerability involves the Quarantine Handler component, specifically the file rtscanner. The issue allows for OS command injection, which can be initiated remotely. Potential attack vectors include:
- Remote Exploitation: An attacker could craft malicious input that, when processed by the Quarantine Handler, executes arbitrary OS commands.
- Phishing and Social Engineering: Attackers might use phishing techniques to trick users into downloading and executing malicious files that exploit this vulnerability.
- Network-Based Attacks: Given the remote nature of the attack, network-based vectors such as malicious websites or compromised servers could be used to deliver the exploit.
3. Affected Systems and Software Versions
The vulnerability specifically affects:
- Software: MicroWorld eScan Antivirus
- Version: 7.0.32
- Platform: Linux
Other versions and platforms may also be affected, but this has not been confirmed. Organizations using eScan Antivirus on Linux should prioritize patching or mitigating this vulnerability.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Immediately apply any available patches or updates from MicroWorld. If no patch is available, consider switching to a different antivirus solution until a fix is released.
- Network Segmentation: Isolate systems running eScan Antivirus from critical networks to limit the potential impact of an exploit.
- Input Validation: Implement additional input validation and sanitization mechanisms to prevent command injection.
- Monitoring and Logging: Enhance monitoring and logging to detect any suspicious activities related to the Quarantine Handler component.
- User Education: Educate users about the risks of phishing and social engineering attacks to reduce the likelihood of successful exploitation.
5. Impact on European Cybersecurity Landscape
The disclosure of this vulnerability has significant implications for the European cybersecurity landscape:
- Critical Infrastructure: Organizations in critical sectors such as healthcare, finance, and government that rely on eScan Antivirus are at heightened risk.
- Compliance: Non-compliance with patching and mitigation strategies could lead to regulatory penalties under GDPR and other relevant regulations.
- Reputation: Public disclosure of the exploit increases the risk of widespread attacks, potentially damaging the reputation of affected organizations.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Exploit Details: The exploit involves injecting OS commands through the
rtscannerfile in the Quarantine Handler component. The specifics of the injection method are detailed in the referenced GitHub repository. - Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block attempts to exploit this vulnerability.
- Response: Develop incident response plans that include steps for isolating affected systems, containing the threat, and restoring normal operations.
- Testing: Conduct thorough penetration testing to identify and remediate similar vulnerabilities in other components of the antivirus software.
Conclusion
The vulnerability in MicroWorld eScan Antivirus 7.0.32 on Linux is critical and requires immediate attention. Organizations should prioritize patching, implement robust mitigation strategies, and enhance their monitoring and response capabilities to protect against potential exploits. The European cybersecurity landscape must remain vigilant to prevent widespread impacts from this and similar vulnerabilities.