Platform
php
Component
armbot
CVE-2019-25480 describes an unrestricted file upload vulnerability discovered in ARMBot, a PHP-based application. This flaw allows unauthenticated attackers to upload arbitrary files, potentially leading to remote code execution. The vulnerability affects versions 1.0.0 and later. A fix is available, and users are urged to upgrade to a secure version.
The primary impact of CVE-2019-25480 is the potential for remote code execution (RCE). An attacker can leverage this vulnerability to upload a malicious PHP file, typically by manipulating the 'file' parameter with path traversal sequences like '../public_html/'. Once uploaded, the attacker can execute arbitrary code on the server, gaining complete control over the affected system. This could lead to data breaches, system compromise, and further malicious activity, including lateral movement within the network. The blast radius extends to any data stored on the server and any services accessible from the compromised system.
While no active exploitation campaigns have been publicly reported, the vulnerability's ease of exploitation and the potential for RCE make it a high-risk target. The vulnerability is not currently listed on the CISA KEV catalog. Public proof-of-concept (PoC) code may exist or emerge, increasing the risk of exploitation. The description clearly outlines the attack vector, making it relatively straightforward for attackers to exploit.
Exploit Status
EPSS
0.18% (40% percentile)
CISA SSVC
CVSS Vector
The most effective mitigation for CVE-2019-25480 is to upgrade to a patched version of ARMBot as soon as it becomes available. If upgrading immediately is not possible, implement temporary workarounds to restrict file uploads. This includes strictly validating file types and sizes, implementing robust input sanitization to prevent path traversal attacks, and disabling the upload functionality entirely if it's not essential. Consider using a Web Application Firewall (WAF) to filter out malicious upload attempts. Regularly review access logs for suspicious file upload activity.
Update ARMBot to the latest available version to mitigate the unrestricted file upload vulnerability. Verify and configure file and directory permissions appropriately to prevent unauthorized writing. Implement strict server-side validation for uploaded files, including file type and size verification.
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CVE-2019-25480 is a vulnerability in ARMBot allowing unauthenticated attackers to upload arbitrary files, potentially leading to remote code execution. It's rated HIGH severity (CVSS 7.5) and affects versions 1.0.0 and later.
If you are using ARMBot version 1.0.0 or later, you are potentially affected. Check if a patch is available and upgrade immediately.
The recommended fix is to upgrade to a patched version of ARMBot. As a temporary workaround, restrict file uploads, validate file types, and disable the upload functionality if possible.
While no active campaigns are confirmed, the vulnerability's ease of exploitation makes it a potential target. Monitor your systems for suspicious activity.
Refer to the vendor's security advisory or relevant security mailing lists for updates and official announcements regarding CVE-2019-25480.
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