CVE-2023-26117 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-26117, a vulnerability impacting versions of the package angular.

Understanding CVE-2023-26117

CVE-2023-26117 is a vulnerability that affects versions of the package angular, specifically version 1.0.0. It is classified as a Regular Expression Denial of Service (ReDoS) vulnerability.

What is CVE-2023-26117?

The vulnerability in CVE-2023-26117 is due to the insecure regular expression used in the $resource service of the affected package. It allows an attacker to exploit the vulnerability by providing a carefully-crafted input, leading to catastrophic backtracking.

The Impact of CVE-2023-26117

Exploiting CVE-2023-26117 can result in a Regular Expression Denial of Service (ReDoS) attack, causing service disruption or denial of service. The base severity of this vulnerability is rated as MEDIUM with a base score of 5.3.

Technical Details of CVE-2023-26117

The vulnerability has been assigned a CVSS v3.1 base score of 5.3, indicating a medium severity level. The attack vector is through the network with low complexity, requiring no privileges or user interaction. The impact affects the availability of the system.

Vulnerability Description

The vulnerability allows for Regular Expression Denial of Service (ReDoS) by exploiting the insecure regular expression used in the $resource service of the angular package.

Affected Systems and Versions

Versions of the 'angular' package up to version 1.0.0 are affected by this vulnerability.

Exploitation Mechanism

By providing a large carefully-crafted input, an attacker can exploit the insecure regular expression in the $resource service, leading to catastrophic backtracking and a potential denial of service.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-26117, the following steps can be taken:

Immediate Steps to Take

Update the 'angular' package to a version that addresses the vulnerability.
Monitor for any unusual or suspicious activities that may indicate an exploitation attempt.

Long-Term Security Practices

Regularly update software and packages to ensure that known vulnerabilities are patched.
Implement input validation mechanisms to prevent malicious inputs from triggering harmful behaviors.

Patching and Updates

Refer to the provided references for patching information and updates related to CVE-2023-26117.

By understanding the nature of the vulnerability and taking proactive security measures, organizations can reduce the risk of exploitation and protect their systems from potential threats.