A vulnerability was found in MicroWord eScan Antivirus 7.0.32 on Linux and classified as critical. Affected by this issue is the function strcpy of the component VirusPopUp. The manipulation leads to stack-based buffer overflow. The attack needs to be approached locally. 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.
With a CVSS score of 4.8, this vulnerability is considered medium severity. Organizations should assess the impact on their systems and prioritize remedial actions accordingly. Risk to organizations includes potential unauthorized access to sensitive information, with the exploit disclosed publicly, increasing the urgency to address this issue.
Organizations should prioritize patching immediately to mitigate the risk associated with this vulnerability. The vendor has not provided a patch or response, making it critical for organizations to seek alternative mitigation strategies.
The exploitation status indicates that there is no known public exploit available yet, although the vulnerability has been disclosed and may be leveraged by attackers. Organizations must remain vigilant and monitor for any potential exploits that may emerge.
This vulnerability has the potential to affect a wide range of users, particularly those utilizing the affected version of the MicroWord eScan Antivirus on Linux. Appropriate measures should be taken to safeguard systems against potential exploitation.
Vulnerability Details
The vulnerability classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow) poses a significant risk. It allows attackers with local access to manipulate the system, potentially leading to arbitrary code execution. The function strcpy in the VirusPopUp component is the root cause of this stack-based buffer overflow vulnerability, which could be exploited if left unaddressed.
This vulnerability is specific to MicroWord eScan Antivirus version 7.0.32 on Linux. The risk assessment should be conducted in accordance with the CVSS scoring, which indicates a medium severity level.
Technical Analysis
The root cause of the vulnerability is a stack-based buffer overflow that occurs due to improper handling of input by the strcpy function. This issue arises when an attacker provides input that exceeds the allocated buffer size, causing adjacent memory locations to be overwritten.
The attack vector is local, meaning the attacker must have physical or remote access to the machine where the software is installed. The attack complexity is low, as it does not require sophisticated skills or extensive knowledge of the system.
The privileges required to exploit this vulnerability are low; a user with standard permissions can potentially leverage this vulnerability. User interaction is not required, enabling attackers to execute the exploit without any action from the end-user.
The impacts of this vulnerability on confidentiality, integrity, and availability are classified as low, indicating that the exploitation may not lead to a complete compromise of the system but can still allow for unauthorized access or manipulation of data.
Risk & Impact Analysis
Real-world deployment risk for this vulnerability is significant, particularly for organizations relying on MicroWord eScan Antivirus for endpoint protection. If exploited, it can lead to unauthorized access to sensitive information and potentially allow attackers to execute arbitrary code.
This matters to organizations as it can expose them to compliance violations, data breaches, and reputational damage. The blast radius could affect all systems running the vulnerable version of the software, leading to widespread impact.
Given the CVSS score of 4.8, organizations should address this vulnerability in their priority patch cycle. The EPSS score of 0.00065 indicates a low likelihood of exploitation in the wild, but organizations should not be complacent.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable product affected is MicroWord eScan Antivirus version 7.0.32. Organizations should ensure they are not using this version or apply available patches as soon as possible to mitigate the risk.
Mitigation & Remediation
Organizations should prioritize remediation by applying the necessary patches or updates provided by the vendor as soon as they are available. If no patch is available, consider implementing workaround measures such as disabling the affected component or applying stricter access controls.
For further guidance on improving your security posture, organizations may consider engaging in penetration testing to identify and remediate vulnerabilities effectively.
Detection Guidance
Organizations should monitor logs for any anomalous behavior that could indicate attempts to exploit this vulnerability. Key indicators include unexpected access to components or abnormal application behavior.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in the potential for exploitation if not addressed. Security teams should remain vigilant and monitor for updates from the vendor regarding patches or mitigation strategies.
This incident highlights the importance of timely communication and collaboration between vendors and users in addressing vulnerabilities. Establishing a robust vulnerability management program can help organizations better prepare for and respond to such vulnerabilities.
Ultimately, the lessons learned from this vulnerability should inform future security practices, reinforcing the need for proactive security measures and regular assessments to identify potential weaknesses.
For further reading, organizations can explore resources on penetration testing methodology and best practices in vulnerability management.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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