Denial-of-Service Vulnerability in phpMyAdmin
Summary
CVE-2016-6623: An issue was discovered in phpMyAdmin. Affects phpmyadmin across 61 version ranges.
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Fixed in 4.4.15.8-r0. How to fix ↓
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Background
phpMyAdmin is a popular open-source tool used for managing MySQL databases. It provides a web-based interface for performing various database administration tasks. The vulnerability identified as CVE-2016-6623 affects versions 4.6.x (prior to 4.6.4), 4.4.x (prior to 4.4.15.8), and 4.0.x (prior to 4.0.10.17) of phpMyAdmin. This vulnerability allows an authorized user to launch a denial-of-service (DoS) attack on a server by exploiting a loop with large input values.
Vulnerability Detail
The vulnerability (CVE-2016-6623) in phpMyAdmin arises from a flaw in the handling of user input. By passing large values to a loop, an attacker with authorized access can cause the server to become unresponsive, resulting in a denial-of-service condition. This vulnerability can be exploited remotely without any authentication. The impact of this vulnerability is a complete disruption of service, rendering the affected server inaccessible to legitimate users.
How To Fix
Minimum fixed version
4.4.15.8-r0
This is the first release that contains the fix.
sudo apk add --upgrade phpmyadminTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, restricting access to phpMyAdmin from untrusted networks or IP addresses can help mitigate the risk of exploitation. Additionally, monitoring the server for any unusual activity or high resource utilization can help detect and respond to a potential DoS attack.
Conclusion
The CVE-2016-6623 vulnerability in phpMyAdmin poses a significant risk of a denial-of-service attack. It is crucial to update phpMyAdmin to the recommended versions to mitigate this vulnerability. Restricting access and monitoring server activity can provide temporary protection. For further assistance and support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for phpmyadmin →
FAQ
phpMyAdmin is an open-source tool that provides a web-based interface for managing MySQL databases. It allows users to perform various database administration tasks such as creating, modifying, and deleting databases, tables, and records.
The CVE-2016-6623 vulnerability in phpMyAdmin allows an authorized user to launch a denial-of-service attack on a server by passing large values to a loop. This can result in the server becoming unresponsive and inaccessible to legitimate users.
Yes, the CVE-2016-6623 vulnerability can be exploited remotely without requiring any authentication. An attacker with authorized access to phpMyAdmin can exploit this vulnerability to cause a denial-of-service condition on the server.
To fix the CVE-2016-6623 vulnerability, it is recommended to update phpMyAdmin to version 4.6.4, 4.4.15.8, or 4.0.10.17, depending on the installed version. These updated versions contain the necessary patches to mitigate the vulnerability.
As a temporary workaround, restricting access to phpMyAdmin from untrusted networks or IP addresses can help mitigate the risk of exploitation. Additionally, monitoring the server for any unusual activity or high resource utilization can help detect and respond to a potential DoS attack.
Related vulnerabilities
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