XSS Vulnerability in phpMyAdmin: CVE-2016-9856
Summary
UBUNTU-CVE-2016-9856: An XSS issue was discovered in phpMyAdmin because of an improper fix for CVE-2016-2559 in PMASA-2016-10. Affects phpmyadmin versions 4:4.0.10-1 – 4:4.0.9-1. No fix is published. How to fix ↓
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Background
phpMyAdmin is a widely used open-source tool for managing MySQL databases through a web interface. It allows users to perform various database operations such as creating, modifying, and deleting databases and tables. The package is popular among developers and system administrators for its ease of use and extensive features. However, it has been found to be vulnerable to an XSS (Cross-Site Scripting) issue due to an improper fix for a previous vulnerability, CVE-2016-2559.
Vulnerability Detail
The vulnerability, identified as CVE-2016-9856, arises from an improper fix for a prior XSS issue in phpMyAdmin. This flaw can allow attackers to execute arbitrary JavaScript code in the context of the user's session, potentially leading to data theft, session hijacking, or other malicious actions. The affected versions include all 4.6.x versions prior to 4.6.5, 4.4.x versions prior to 4.4.15.9, and 4.0.x versions prior to 4.0.10.18. The CVSS score for this vulnerability is 6.1, indicating a medium severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If immediate patching is not possible, consider restricting access to the phpMyAdmin interface to trusted IP addresses only, or implementing web application firewalls to filter out malicious requests.
Conclusion
CVE-2016-9856 is a significant XSS vulnerability in phpMyAdmin that can lead to serious security risks if not addressed. Users are strongly advised to update to the latest patched versions to mitigate these risks. Additionally, temporary workarounds can help protect systems until updates can be applied.
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FAQ
CVE-2016-9856 is a vulnerability in phpMyAdmin that allows for Cross-Site Scripting (XSS) attacks due to an improper fix for a previous issue.
Affected versions include all 4.6.x versions prior to 4.6.5, 4.4.x versions prior to 4.4.15.9, and 4.0.x versions prior to 4.0.10.18.
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Consider implementing access restrictions or using web application firewalls as a temporary measure until you can apply the patch.
The CVSS score for CVE-2016-9856 is 6.1, indicating a medium severity level.
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