CVE-2016-1000031: Improper Access Control in commons-fileupload
Summary
CVE-2016-1000031: Improper Access Control in commons-fileupload. Affects commons-fileupload:commons-fileupload versions < 1.3.3. Fixed in 1.3.3. How to fix ↓
Also tracked for
- libcommons-fileupload-java · Debian:11
The same CVE-2016-1000031 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Apache Commons FileUpload is a popular Java library used for uploading files to a server. It provides a simple API for handling file uploads in web applications. The library allows developers to parse and process multipart/form-data requests, making it easier to handle file uploads. However, versions prior to 1.3.3 are vulnerable to an improper access control issue, which can lead to remote code execution.
Vulnerability Detail
The vulnerability, identified as CVE-2016-1000031, originates from a flaw in the DiskFileItem class of Apache Commons FileUpload. This flaw allows an attacker to manipulate the content of a file being uploaded, potentially leading to remote code execution. By exploiting this vulnerability, an attacker can upload a malicious file with arbitrary content and execute arbitrary code on the server. This can result in a complete compromise of the affected system, leading to unauthorized access, data breaches, or other malicious activities.
How To Fix
Minimum fixed version
1.3.3
This is the first release that contains the fix.
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Workaround
If upgrading to the latest version is not immediately feasible, a temporary workaround can be implemented. Developers can manually validate the content of uploaded files to ensure they adhere to expected formats and do not contain any malicious code. This can be done by checking the file's extension, MIME type, and performing additional validation on the file's content. However, it is important to note that this workaround is not a permanent solution and should only be considered as a temporary measure until the library can be updated.
Conclusion
In conclusion, the improper access control vulnerability in Apache Commons FileUpload can lead to remote code execution and compromise the affected system. It is crucial to upgrade to the latest version of the library (1.3.3 or later) to mitigate this vulnerability. If immediate upgrade is not possible, manual validation of uploaded files can be implemented as a temporary workaround. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for commons-fileupload:commons-fileupload →
FAQ
Apache Commons FileUpload is a Java library used for handling file uploads in web applications. It simplifies the process of parsing and processing multipart/form-data requests.
The vulnerability allows an attacker to upload a malicious file and execute arbitrary code on the server. This can lead to unauthorized access, data breaches, or other malicious activities.
To fix this vulnerability, upgrade to Apache Commons FileUpload version 1.3.3 or later. Update your application's dependencies to use the latest version of commons-fileupload library.
If upgrading immediately is not possible, you can manually validate the content of uploaded files to ensure they are safe. However, this is not a permanent solution and should only be considered as a temporary measure.
For more information about this vulnerability, you can refer to the CVE-2016-1000031 advisory or visit the Apache Commons FileUpload project website.
Related vulnerabilities
Recent vulnerabilities recorded for commons-fileupload:commons-fileupload.
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