Authentication Bypass Vulnerability in libphp-adodb: CVE-2021-3850
Summary
DEBIAN-CVE-2021-3850: Authentication Bypass by Primary Weakness in GitHub repository adodb/adodb prior to 5.20.21. Affects libphp-adodb versions < 5.20.19-1+deb11u1. Fixed in 5.20.19-1+deb11u1. How to fix ↓
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Background
libphp-adodb is a PHP library that provides a database abstraction layer, allowing developers to interact with various database systems using a unified API. It is widely used in web applications to simplify database operations. However, this package has been found to have a critical vulnerability that could allow unauthorized access to sensitive data.
Vulnerability Detail
The vulnerability identified as CVE-2021-3850 is an authentication bypass caused by a primary weakness in the libphp-adodb library. This flaw allows attackers to gain unauthorized access to systems that utilize this library, potentially leading to data breaches and exploitation of sensitive information. The vulnerability affects multiple versions of the package across different Debian releases, making it crucial for users to address it promptly.
How To Fix
Minimum fixed version
5.20.19-1+deb11u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libphp-adodbTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can restrict access to the application using firewall rules or by implementing additional authentication mechanisms to mitigate the risk of unauthorized access until the package is updated.
Conclusion
The CVE-2021-3850 vulnerability in libphp-adodb poses a significant risk to applications using this library. It is essential for users to update to the patched versions to secure their systems against potential unauthorized access.
See every vulnerability recorded for libphp-adodb →
FAQ
CVE-2021-3850 is a vulnerability in the libphp-adodb library that allows for authentication bypass, potentially leading to unauthorized access to sensitive data.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Versions prior to 5.20.21 for Debian 11 and prior to 5.21.4 for Debian 12, 13, and 14 are affected by this vulnerability.
If immediate updates are not possible, consider implementing additional security measures, such as restricting access or using alternative authentication methods.
More details can be found in the official Debian CVE database at https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3850.json.
References
Related vulnerabilities
Recent vulnerabilities recorded for libphp-adodb.
