CVE-2020-21503 : Security Advisory and Response

A logic flaw in waimai Super Cms 20150505 allows attackers to manipulate prices, leading to free product sales.

Understanding CVE-2020-21503

This CVE involves a vulnerability in waimai Super Cms 20150505 that enables attackers to change prices before form submission.

What is CVE-2020-21503?

The vulnerability in waimai Super Cms 20150505 permits attackers to alter product prices to zero by manipulating a specific credit parameter.

The Impact of CVE-2020-21503

Attackers can exploit this flaw to sell products for free, potentially causing financial losses to the affected organization.

Technical Details of CVE-2020-21503

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in waimai Super Cms 20150505 allows attackers to observe data in a packet capture and set the credit parameter to -1, resulting in free product sales.

Affected Systems and Versions

Affected System: waimai Super Cms 20150505
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the index.php?m=gift&a=addsave credit parameter to -1, enabling them to sell products for free.

Mitigation and Prevention

Protecting systems from CVE-2020-21503 is crucial to prevent unauthorized price modifications and free product sales.

Immediate Steps to Take

Monitor and analyze network traffic for any suspicious activity related to price manipulation.
Implement access controls to restrict unauthorized access to critical parameters.
Regularly update and patch the CMS to address security vulnerabilities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.
Train employees on cybersecurity best practices to enhance overall security posture.

Patching and Updates

Apply patches and updates provided by the CMS vendor to fix the vulnerability and enhance system security.