CVE-2023-27783 : Security Advisory and Response

This CVE record covers an issue discovered in TCPreplay tcprewrite version 4.4.3, which could be exploited by a remote attacker to execute a denial of service attack by leveraging the tcpedit_dlt_cleanup function located at plugins/dlt_plugins.c.

Understanding CVE-2023-27783

This section delves into the details of CVE-2023-27783, exploring the vulnerability and its impact.

What is CVE-2023-27783?

CVE-2023-27783 is a vulnerability present in TCPreplay tcprewrite version 4.4.3 that could be abused by a remote attacker. By exploiting this vulnerability through the tcpedit_dlt_cleanup function in plugins/dlt_plugins.c, the attacker can trigger a denial of service condition on the targeted system.

The Impact of CVE-2023-27783

The impact of this vulnerability lies in its potential to disrupt the normal operation of the affected system, leading to a denial of service. This could result in service unavailability, affecting system reliability and performance.

Technical Details of CVE-2023-27783

In this section, we will delve into the technical aspects of CVE-2023-27783, including vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in TCPreplay tcprewrite version 4.4.3 resides in the tcpedit_dlt_cleanup function present in plugins/dlt_plugins.c. This issue can be leveraged by a remote attacker to launch a denial of service attack on the target system.

Affected Systems and Versions

The affected vendor and product information are not available for this CVE. However, TCPreplay tcprewrite version 4.4.3 is specifically identified as vulnerable to this exploit.

Exploitation Mechanism

The vulnerability can be exploited remotely by an attacker through the tcpedit_dlt_cleanup function in plugins/dlt_plugins.c. By sending specially crafted requests, the attacker can trigger the denial of service condition on the target system.

Mitigation and Prevention

Mitigating CVE-2023-27783 requires immediate action to secure the affected systems and prevent exploitation.

Immediate Steps to Take

Consider implementing network-level controls to limit access to vulnerable systems.
Monitor network traffic for any suspicious patterns or activities that could indicate an ongoing attack.
Stay informed about security updates and advisories related to TCPreplay tcprewrite to address the vulnerability.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities promptly.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses in the system.
Train personnel on best security practices to enhance overall cybersecurity posture.

Patching and Updates

Keep an eye on official sources for patches and updates released by TCPreplay tcprewrite to fix CVE-2023-27783. Applying these patches as soon as they are available is crucial to mitigating the risk posed by this vulnerability.