CVE-2023-0666 represents a medium severity vulnerability that affects Wireshark, specifically in versions 4.0.5 and earlier. This vulnerability allows a heap-based buffer overflow due to the failure in validating the length of an attacker-crafted RTPS packet. The implications of this vulnerability may include code execution in the context of the process running Wireshark.
With a CVSS score of 6.5, the associated risk is deemed medium, indicating that while an attack may require some user interaction, there remains a significant risk to the availability of the affected systems. The relevance of this vulnerability is underscored by its potential to compromise system integrity and availability, making it a priority for organizations using Wireshark.
As of now, the exploitation status remains unclear, with no public exploits confirmed. Nevertheless, organizations using affected versions of Wireshark should prioritize patching to mitigate any potential risks arising from this vulnerability.
Organizations should prioritize patching immediately.
Vulnerability Details
The vulnerability is classified as a heap-based buffer overflow due to the failure in validating the length provided by an attacker-crafted RTPS packet. The CVSS score of 6.5 indicates a medium severity, with a vector string of 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'. This vulnerability affects Wireshark versions 4.0.5 and earlier, and was published on June 7, 2023.
The vulnerabilities are classified under CWE-122 (Heap-based Buffer Overflow) and CWE-787 (Out-of-bounds Write), indicating the nature of the potential exploits.
Technical Analysis
The root cause of CVE-2023-0666 lies in the improper validation of packet lengths in the Wireshark application. The attack vector is network-based, meaning an attacker could exploit this vulnerability remotely. The complexity of the attack is considered low, as the attacker may not require any special privileges, only user interaction to trigger the vulnerable functionality.
The attack may lead to high availability impact, as the process running Wireshark could crash due to the buffer overflow. Confidentiality and integrity impacts are minimal, as the vulnerability does not allow unauthorized data access or modification.
Risk & Impact Analysis
Risk to organizations includes potential downtime due to the crashing of Wireshark processes, which could disrupt network analysis activities. Attackers may leverage this vulnerability to cause significant operational impact, especially in environments where Wireshark is critical for network diagnostics.
Given the availability impact of this vulnerability, organizations should address it in priority patch cycles. The exploitation status remains unclear; however, proactive remediation is essential to mitigate any risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Wireshark versions 4.0.5 and prior are affected by this vulnerability. Organizations using these versions should take immediate action to upgrade to the latest version to eliminate the risk of exploitation.
Mitigation & Remediation
To mitigate this vulnerability, organizations should upgrade Wireshark to version 4.0.6 or later, as this version addresses the identified issues. If an upgrade is not immediately possible, consider implementing network controls to restrict access to Wireshark or monitor for unusual network behavior.
For further guidance on effective security practices, organizations may refer to the penetration testing services that can help validate the effectiveness of their security measures.
Detection Guidance
Organizations should monitor logs for any unusual packet lengths or suspicious RTPS activity. Behavioral anomalies in network traffic could indicate attempts to exploit this vulnerability, and system changes related to network monitoring tools should also be observed closely.
AppSecure Threat Intelligence Insight
CVE-2023-0666 serves as a reminder of the importance of validating input in network protocols. As vulnerabilities of this nature can lead to significant availability impacts, organizations should remain vigilant in applying patches and updates promptly.
For further insights on vulnerability management and proactive security measures, refer to the following resources: vulnerability management program, penetration testing methodology, and continuous security testing practices to enhance overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)