Authentication Bypass in BloodX 1.0 login.php Enables Unauthorized Access

Executive Summary

[{'type': 'paragraph', 'content': "CVE-2020-37156 is an authentication bypass vulnerability in BloodX version 1.0, specifically in the login.php file. This flaw allows attackers to access the dashboard without valid credentials by sending a crafted payload containing parameters such as '=' or 'or' to bypass the login authentication mechanism."}] [2, 3]

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Impact Analysis

This vulnerability allows an attacker to gain unauthorized access to the BloodX dashboard without valid credentials. As a result, attackers can potentially view sensitive information or perform actions reserved for authenticated users, compromising the confidentiality of the system. However, the vulnerability does not impact integrity or availability.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': "This vulnerability can be detected by attempting to exploit the authentication bypass in the login.php file of BloodX 1.0. Specifically, sending a crafted POST request with payload parameters such as '=' or 'or' in the email and password fields can reveal if the system is vulnerable."}, {'type': 'paragraph', 'content': 'A sample command using curl to test the vulnerability would be:'}, {'type': 'list_item', 'content': 'curl -X POST -d "email=\'=\'\'or\'&password=\'=\'\'or\'" http://target-site/login.php -v'}, {'type': 'paragraph', 'content': 'If the response grants access to the dashboard without valid credentials, the vulnerability is present.'}] [2, 3]

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Mitigation Strategies

[{'type': 'paragraph', 'content': 'Immediate mitigation steps include:'}, {'type': 'list_item', 'content': 'Restrict access to the login.php page by implementing proper input validation and sanitization to prevent crafted payloads from bypassing authentication.'}, {'type': 'list_item', 'content': 'Update or patch the BloodX application to a version where this authentication bypass vulnerability is fixed, if available.'}, {'type': 'list_item', 'content': 'Implement multi-factor authentication to add an additional layer of security beyond username and password.'}, {'type': 'list_item', 'content': "Monitor access logs for suspicious login attempts using payloads similar to '=' or 'or' in parameters."}, {'type': 'list_item', 'content': 'If immediate patching is not possible, consider restricting network access to the application to trusted IPs only.'}] [2, 3]

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