On December 2, 2019, Cisco Talos publicly released reports of a remote code execution vulnerability (CVE-2019-5096) and a denial of service vulnerability (CVE-2019-5097) for the GoAhead web server. GoAhead is an open source, simple, lightweight, and powerful embedded Web Server. It is a Web server tailored for embedded real-time operating systems (RTOS) and can run on multiple platforms.
CVE-2019-5096: Some versions of GoAhead Web Server have a remote code execution vulnerability when processing multipart / form-data requests. CVE-2019-5097: Some versions of GoAhead Web Server have a denial of service vulnerability when processing multipart / form-data requests. An attacker constructing a malicious HTTP request may cause the server process to enter an infinite loop. In the case of authentication, it is sent as GET or POST, and the requested resource is not required on the target server.
Scope of Impact
- GoAhead Web Server 5.0.1
- GoAhead Web Server 4.1.1
- GoAhead Web Server 3.6.5
- GoAhead Web Server 5.1.0
Use the following command to view the Gohead Web Server version currently used:
It is risky if the version affected.
At present, the vulnerability has been fixed in the latest 5.1.0 version. The affected users are recommended to upgrade the version as soon as possible. The official download link: https://www.embedthis.com/goahead/download.html
The steps are as follows:
First, make a backup of the website. Go to the link above to download the package that has been fixed. After decompression, enter the program directory. The directory structure is as follows:
Execute the following commands in sequence in the current directory:
sudo make install
Deploy the backed up website to the website directory, such as: / var / www / goahead. Go to the / build / linux-x64-default / bin directory and use the following command to start the new version of GoAhead Web Server:
|./goahead -v –home /etc/goahead /var/www/goahead 0.0.0.0:8888|
Successful startup screenshot:
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