{"id":75936,"date":"2025-09-16T22:34:51","date_gmt":"2025-09-16T22:34:51","guid":{"rendered":""},"modified":"2025-10-01T19:28:08","modified_gmt":"2025-10-02T01:28:08","slug":"cve-2025-57633-critical-command-injection-vulnerability-in-ftp-flask-python","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-57633-critical-command-injection-vulnerability-in-ftp-flask-python\/","title":{"rendered":"CVE-2025-57633: Critical Command Injection Vulnerability in FTP-Flask-python<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The cybersecurity landscape is yet again shaken by a critical vulnerability, CVE-2025-57633, affecting the popular FTP-Flask-Python software. This vulnerability allows unauthenticated remote attackers to execute arbitrary Operating System (OS) commands, potentially leading to full system compromise or severe data leakage. Given the ubiquity of FTP-Flask-Python in diverse IT environments, the potential impact of this vulnerability<\/a> is massive, underscoring the importance of immediate patching and remediation.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-57633
\nSeverity: Critical (9.8 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

FTP-Flask-python | Through commit 5173b68<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability arises from the \/ftp.html endpoint’s “Upload File”<\/a> action that constructs a shell command from the ftp_file parameter. The command is then executed<\/a> using os.system() without any sanitization or escaping. This lack of input validation allows an attacker to inject malicious commands<\/a> embedded within the ftp_file parameter. Since these commands are executed with the same privileges as the FTP-Flask-python process, this could lead to unauthorized access<\/a>, data exfiltration, or even complete system compromise.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

This conceptual example demonstrates how an attacker might exploit the vulnerability. The attacker crafts a malicious file that includes a shell command<\/a> and submits it via the “Upload File” action.<\/p>\n

POST \/ftp.html HTTP\/1.1\nHost: target.example.com\nContent-Type: multipart\/form-data; boundary=----WebKitFormBoundary\n------WebKitFormBoundary\nContent-Disposition: form-data; name=\"ftp_file\"; filename=\"malicious.txt\"\nContent-Type: text\/plain\n; rm -rf \/ --no-preserve-root; # This is an example of a dangerous command\n------WebKitFormBoundary--<\/code><\/pre>\n
This HTTP request will cause the FTP-Flask-python server to execute the malicious command<\/a> (`rm -rf \/ –no-preserve-root`), which can result in severe damage to the system.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
It is highly recommended that users apply the vendor’s patch as soon as possible. In the meantime, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) for temporary mitigation. These tools can help detect and block attempts to exploit this vulnerability<\/a> until the patch can be applied.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is yet again shaken by a critical vulnerability, CVE-2025-57633, affecting the popular FTP-Flask-Python software. This vulnerability allows unauthenticated remote attackers to execute arbitrary Operating System (OS) commands, potentially leading to full system compromise or severe data leakage. Given the ubiquity of FTP-Flask-Python in diverse IT environments, the potential impact of this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[78],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-75936","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-injection"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t