CVE-2022-37603 reveals a serious Regular expression denial of service (ReDoS) flaw located in the Function interpolateName within interpolateName.js of webpack loader-utils version 2.0.0. The vulnerability arises from the handling of the url variable in interpolateName.js, which can potentially lead to application unavailability due to excessive resource consumption.
With a CVSS score of 7.5, classified as high severity, this vulnerability highlights significant risk to organizations. The attack vector is network-based, with low complexity and no privileges required for exploitation. The potential impact on availability is high, making it critical for organizations to take immediate action.
Currently, there are no known exploits available in the wild, but the nature of this vulnerability necessitates that organizations prioritize remediation efforts. As the vulnerability has been publicly disclosed, organizations should act promptly to mitigate risks.
Organizations should prioritize patching immediately, particularly those using affected versions of webpack loader-utils, to prevent potential denial of service attacks.
Vulnerability Details
The vulnerability in question is described in detail as a Regular expression denial of service (ReDoS) flaw found in the interpolateName function within interpolateName.js from webpack loader-utils version 2.0.0. The flaw exploits the url variable in this script, which can lead to performance degradation and unavailability of the affected application.
This vulnerability has a CVSS score of 7.5, indicating a high severity rating. The attack vector is classified as network-based, with low complexity associated with its exploitation. Importantly, no privileges or user interaction are required, which increases the risk of exploitation. The availability impact is rated as high, meaning that this flaw can severely disrupt service.
The vulnerability is linked to CWE-1333, which pertains to insufficient validation of input data, leading to denial of service conditions. Organizations using versions of webpack loader-utils prior to 2.0.4 are at greater risk.
Technical Analysis
The root cause of this vulnerability lies in improper handling of regular expressions within the interpolateName function, specifically targeting the url variable. The attack vector is network-based, allowing attackers to exploit the flaw remotely, with low complexity facilitating easier attacks.
No privileges are required to exploit this vulnerability, and no user interaction is necessary to trigger it. As a result, any user could potentially initiate an attack, leading to a high impact on availability due to resource exhaustion.
Confidentiality and integrity impacts are rated as none, meaning that sensitive data exposure is not a concern in this specific vulnerability. The focus remains on the potential for denial of service, which can disrupt application availability significantly.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2022-37603 is significant, particularly for organizations relying on webpack loader-utils for their applications. The potential for denial of service attacks poses a considerable threat to operational continuity, affecting both user experience and service availability.
Given the high CVSS score and the nature of the vulnerability, organizations must recognize the urgency of addressing this issue. The risk extends across various sectors, especially those utilizing web technologies that depend on the affected library.
Organizations should schedule remediation as soon as possible. Not only does this flaw represent a critical vulnerability, but its potential impact on service availability requires proactive measures to mitigate risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Affected versions of webpack loader-utils include:
• All versions prior to 1.4.2 • Versions 2.0.0 to 2.0.3 • Versions 3.0.0 to 3.2.0
Mitigation & Remediation
Organizations using affected versions of webpack loader-utils should prioritize patching. Ensure that you upgrade to the latest version where this vulnerability is resolved.
For those unable to update immediately, consider implementing configuration hardening to minimize exposure to potential attacks. Regularly monitor system logs for unusual behavior and network traffic patterns.
For further details on security testing, organizations should consider engaging in penetration testing services to identify vulnerabilities proactively.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual patterns that may indicate denial of service attempts. Key indicators include spikes in resource consumption, application crashes, or abnormal latency in response times.
System logs should be regularly reviewed for anomalies, and network signatures should be established to identify malicious traffic patterns targeting the affected application components.
AppSecure Threat Intelligence Insight
The emergence of CVE-2022-37603 highlights the ongoing need for robust application security practices. Organizations should remain vigilant against denial of service vulnerabilities, particularly those that can be exploited through regular expressions.
Security teams should continuously assess their application security posture and incorporate lessons learned from vulnerabilities like this into their defensive strategies.
For further reading on application security best practices, organizations can refer to our guide on penetration testing methodology and other related resources.
Additionally, implementing a comprehensive vulnerability management program can provide a structured approach to identifying and addressing vulnerabilities effectively.
Finally, organizations are encouraged to stay informed about the latest vulnerabilities and trends in application security to enhance their defensive capabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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