CVE-2022-25844 : Exploit Details and Defense Strategies
Discover the impact of CVE-2022-25844, a Regular Expression Denial of Service (ReDoS) vulnerability in the 'angular' package versions 1.7.0 and higher, leading to denial of service risks. Learn about mitigation strategies.
A vulnerability known as Regular Expression Denial of Service (ReDoS) in the 'angular' package after version 1.7.0 has been detected. This CVE poses a risk of denial of service due to custom locale rules and high-value parameters.
Understanding CVE-2022-25844
This section will provide insights into the nature and impact of the CVE.
What is CVE-2022-25844?
The vulnerability in the 'angular' package, versions 1.7.0 and higher, allows for Regular Expression Denial of Service (ReDoS) attacks, leading to potential denial of service incidents.
The Impact of CVE-2022-25844
The impact involves the ability to exploit the vulnerability by providing a custom locale rule that can cause denial of service through high-value parameters, affecting the availability of the system.
Technical Details of CVE-2022-25844
In this section, technical aspects of the vulnerability are discussed.
Vulnerability Description
The vulnerability arises from the ability to assign a very high value to the parameter in posPre within NUMBER_FORMATS.PATTERNS[1].posPre, allowing for ReDoS attacks.
Affected Systems and Versions
The 'angular' package versions starting from 1.7.0, including 'next of 1.7.0', are susceptible to this vulnerability.
Exploitation Mechanism
Exploitation involves manipulating custom locale rules to create denial of service scenarios through high-value parameter assignments.
Mitigation and Prevention
This section outlines steps to mitigate and prevent exploitation of CVE-2022-25844.
Immediate Steps to Take
Users are advised to avoid using versions of the 'angular' package beyond 1.7.0 and implement alternative solutions to prevent ReDoS attacks.
Long-Term Security Practices
Developers should stay informed about security patches and updates, adhere to secure coding practices, and monitor dependencies for vulnerabilities.
Patching and Updates
It is crucial to apply patches released by the package maintainers promptly to address the ReDoS vulnerability in the 'angular' package.