CVE-2023-42364 : Exploit Details and Defense Strategies
Discover the impact of CVE-2023-42364, a use-after-free vulnerability in BusyBox v.1.36.1 allowing attackers to cause denial of service by exploiting a crafted awk pattern in the awk.c function.
A detailed overview of the use-after-free vulnerability in BusyBox v.1.36.1 that allows attackers to cause a denial of service.
Understanding CVE-2023-42364
This section provides insights into the impact, technical details, and mitigation strategies for CVE-2023-42364.
What is CVE-2023-42364?
CVE-2023-42364 is a use-after-free vulnerability in BusyBox v.1.36.1 that enables attackers to trigger a denial of service by exploiting a crafted awk pattern in the awk.c evaluate function.
The Impact of CVE-2023-42364
The vulnerability poses a risk of service disruption or unavailability on systems running the affected version of BusyBox due to the exploitation of the awk pattern.
Technical Details of CVE-2023-42364
This section delves into the specifics of the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The use-after-free flaw in BusyBox v.1.36.1 occurs when an attacker supplies a malicious awk pattern, leading to a system crash or hang.
Affected Systems and Versions
All systems utilizing BusyBox v.1.36.1 are susceptible to this vulnerability, potentially impacting various operating environments.
Exploitation Mechanism
By injecting a specially crafted awk pattern into the awk.c evaluate function, threat actors can exploit the use-after-free bug and disrupt system operations.
Mitigation and Prevention
Learn about the immediate steps to secure affected systems and establish long-term security practices to safeguard against similar vulnerabilities.
Immediate Steps to Take
Users are advised to update BusyBox to a patched version or implement network-level protections to mitigate the risk of denial of service attacks.
Long-Term Security Practices
Regular security audits, code reviews, and implementing robust input validation mechanisms are essential for enhancing overall system security and resilience.
Patching and Updates
Stay informed about security patches released by BusyBox and promptly apply updates to address known vulnerabilities and strengthen system defenses.