CVE-2021-3649 : Exploit Details and Defense Strategies
Discover the impact of CVE-2021-3649, an Inefficient Regular Expression Complexity vulnerability in chatwoot/chatwoot. Learn about affected versions, exploitation, and mitigation steps.
A detailed overview of the Inefficient Regular Expression Complexity vulnerability found in chatwoot/chatwoot.
Understanding CVE-2021-3649
This vulnerability affects chatwoot, making it susceptible to Inefficient Regular Expression Complexity.
What is CVE-2021-3649?
CVE-2021-3649, also known as Inefficient Regular Expression Complexity in chatwoot/chatwoot, is a security vulnerability that allows attackers to exploit the inefficient regular expression complexity present in the chatwoot software.
The Impact of CVE-2021-3649
The impact of this vulnerability is rated as high with a base score of 7.5, posing a significant risk to the availability of the affected systems. The attack complexity is low, but the availability impact is high.
Technical Details of CVE-2021-3649
Exploring the technical aspects of the CVE-2021-3649 vulnerability.
Vulnerability Description
The vulnerability arises due to inefficient regular expression complexity within the chatwoot software, potentially leading to exploitation by malicious actors.
Affected Systems and Versions
The vulnerability affects chatwoot versions less than or equal to 1.11.1, particularly impacting instances with custom versions.
Exploitation Mechanism
Attackers can exploit this vulnerability over the network without requiring any specific privileges, making it a critical issue for systems running the affected chatwoot versions.
Mitigation and Prevention
Understanding how to mitigate the risks associated with CVE-2021-3649.
Immediate Steps to Take
System administrators are advised to update chatwoot to a version beyond 1.11.1 to eliminate the vulnerability. Additionally, monitoring network traffic for any suspicious activities is crucial.
Long-Term Security Practices
Implementing secure coding practices and regular security audits can help prevent similar vulnerabilities from emerging in the future.
Patching and Updates
Regularly applying security patches and updates provided by chatwoot is essential to ensure the system remains protected against known vulnerabilities.