CVE-2021-45470 : What You Need to Know

CVE-2021-45470 relates to a vulnerability in cve-search that allows regular expression injection, potentially leading to denial of service and other impacts.

Understanding CVE-2021-45470

What is CVE-2021-45470?

The vulnerability in lib/DatabaseLayer.py in cve-search before version 4.1.0 permits regular expression injection, which can result in ReDoS (regular expression denial of service) or other severe consequences.

The Impact of CVE-2021-45470

The vulnerability can be exploited to cause denial of service or other adverse effects on systems utilizing cve-search.

Technical Details of CVE-2021-45470

Vulnerability Description

The flaw in lib/DatabaseLayer.py enables attackers to inject malicious regular expressions, potentially leading to ReDoS attacks or other security breaches.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability allows threat actors to manipulate regular expressions to cause denial of service or similar damaging outcomes.

Mitigation and Prevention

Immediate Steps to Take

Update cve-search to version 4.1.0 or newer to mitigate the vulnerability.
Monitor system logs for any signs of suspicious activity.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Conduct security audits and penetration testing to identify and address weaknesses.

Patching and Updates

Apply patches promptly and stay informed about security updates related to cve-search.