CVE-2019-19782
📋 TL;DR
CVE-2019-19782 is a buffer overflow vulnerability in the FTP client of AceaXe Plus 1.0. Attackers can exploit this by sending a specially crafted long EHLO response from an FTP server, potentially leading to remote code execution. This affects all users of AceaXe Plus 1.0 who use its FTP client functionality.
💻 Affected Systems
- AceaXe Plus
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with full system compromise, allowing attackers to install malware, steal data, or create persistent backdoors.
Likely Case
Remote code execution leading to system compromise, though exploitation requires user interaction to connect to a malicious FTP server.
If Mitigated
Denial of service or application crash if exploit attempts are blocked by security controls.
🎯 Exploit Status
Exploitation requires user to connect to attacker-controlled FTP server; public proof-of-concept code is available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: N/A
Restart Required: No
Instructions:
No official patch available. Consider upgrading to alternative FTP client software or implementing workarounds.
🔧 Temporary Workarounds
Disable FTP Client Usage
allPrevent use of the vulnerable FTP client component by restricting access or using alternative FTP software.
Network Segmentation
allRestrict outbound FTP connections to trusted servers only using firewall rules.
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unauthorized code
- Use endpoint detection and response (EDR) solutions to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check if AceaXe Plus 1.0 is installed and if FTP client functionality is being used.Check Version:
Check installed programs list for 'AceaXe Plus 1.0'Verify Fix Applied:
Verify that AceaXe Plus 1.0 is no longer in use or that FTP client functionality has been disabled.📡 Detection & Monitoring
Log Indicators:
- Unusual FTP connection attempts, application crashes from AceaXe Plus
Network Indicators:
- Outbound FTP connections to unknown or suspicious servers
SIEM Query:
source="AceaXe Plus" AND (event="crash" OR event="exception")🔗 References
- https://github.com/sketler/sketler.github.io/blob/master/_posts/2019-11-11-AceaXeftp-RCE-Via-Buffer-Overflow.markdown
- https://sketler.github.io/cve_research/AceaXeftp-RCE-Via-Buffer-Overflow/
- https://github.com/sketler/sketler.github.io/blob/master/_posts/2019-11-11-AceaXeftp-RCE-Via-Buffer-Overflow.markdown
- https://sketler.github.io/cve_research/AceaXeftp-RCE-Via-Buffer-Overflow/
