Buffer Overflow Vulnerability in mini_httpd
Summary
CVE-2017-17663: The htpasswd implementation of mini_httpd before v1.28 and of thttpd before v2.28 is affected by a buffer overflow that can be exploited remotely to perform code execution. Affects mini_httpd versions < 1.29-r0. Fixed in 1.29-r0. How to fix ↓
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Background
mini_httpd is a lightweight web server designed for small systems and embedded devices. It provides basic HTTP server functionality and is commonly used in Alpine Linux distributions. However, a buffer overflow vulnerability (CVE-2017-17663) has been discovered in versions prior to v1.28 of mini_httpd. This vulnerability can be exploited remotely, allowing an attacker to execute arbitrary code on the affected system.
Vulnerability Detail
The buffer overflow vulnerability in mini_httpd and thttpd (prior to v2.28) arises from improper input validation. An attacker can send a specially crafted request to the server, causing a buffer overflow and potentially executing arbitrary code. This can lead to a complete compromise of the affected system, allowing the attacker to gain unauthorized access, modify data, or launch further attacks.
How To Fix
Minimum fixed version
1.29-r0
This is the first release that contains the fix.
sudo apk add --upgrade mini_httpdTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can consider using a different web server software that is not affected by this vulnerability. Alternatively, you can implement network-level mitigations such as firewall rules or intrusion prevention systems to limit access to the affected server.
Conclusion
The buffer overflow vulnerability in mini_httpd poses a significant risk to systems running affected versions. It is crucial to update mini_httpd to version 1.29 or later to mitigate this vulnerability. Additionally, consider implementing network-level mitigations and monitoring for any signs of exploitation. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for mini_httpd →
FAQ
mini_httpd is a lightweight web server designed for small systems and embedded devices. It provides basic HTTP server functionality.
The buffer overflow vulnerability in mini_httpd can allow an attacker to execute arbitrary code on the affected system, potentially leading to unauthorized access, data modification, or further attacks.
To fix this vulnerability, update mini_httpd to version 1.29 or later. Follow the package update process specific to your operating system or distribution.
As a temporary workaround, you can use a different web server software that is not affected by this vulnerability. Additionally, network-level mitigations like firewall rules can limit access to the affected server.
For more information about this vulnerability, you can refer to the CVE-2017-17663 entry in the National Vulnerability Database (NVD) or the provided database-specific source link.
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