CVE-2017-17849
📋 TL;DR
A buffer overflow vulnerability in GetGo Download Manager allows remote HTTP servers to execute arbitrary code by sending overly long responses. This affects NAS devices running GetGo Download Manager version 5.3.0.2712 and earlier, potentially giving attackers full control over affected systems.
💻 Affected Systems
- GetGo Download Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, ransomware deployment, or use as a foothold for lateral movement.
Likely Case
Remote code execution allowing attackers to install malware, create backdoors, or disrupt services on vulnerable NAS devices.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external exploitation attempts.
🎯 Exploit Status
Multiple public exploits exist, making this easily weaponizable by attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.3.0.2713 or later
Vendor Advisory: https://packetstormsecurity.com/files/145530/GetGo-Download-Manager-5.3.0.2712-Buffer-Overflow.html
Restart Required: Yes
Instructions:
1. Download latest version from official GetGo website. 2. Uninstall current version. 3. Install updated version. 4. Restart system.
🔧 Temporary Workarounds
Network Segmentation
allIsolate NAS devices from untrusted networks and restrict HTTP traffic to trusted sources only.
Disable GetGo Download Manager
windowsTemporarily disable or uninstall GetGo Download Manager until patching is possible.
Control Panel > Programs > Uninstall a program > Select GetGo Download Manager > Uninstall
🧯 If You Can't Patch
- Implement strict network access controls to prevent external HTTP connections to the vulnerable service.
- Deploy intrusion detection/prevention systems to monitor for buffer overflow attempts and block malicious traffic.
🔍 How to Verify
Check if Vulnerable:
Check GetGo Download Manager version in program settings or Control Panel. If version is 5.3.0.2712 or earlier, system is vulnerable.Check Version:
wmic product where name="GetGo Download Manager" get versionVerify Fix Applied:
Verify installed version is 5.3.0.2713 or later. Test by attempting to trigger the overflow with controlled payloads in a safe environment.📡 Detection & Monitoring
Log Indicators:
- Unusually large HTTP responses received by GetGo Download Manager
- Process crashes or unexpected behavior in GetGo Download Manager service
Network Indicators:
- HTTP traffic with abnormally large response sizes directed at NAS devices
- Exploit patterns matching known buffer overflow payloads
SIEM Query:
source="*GetGo*" AND (event_type="crash" OR response_size>1000000)🔗 References
- https://packetstormsecurity.com/files/145530/GetGo-Download-Manager-5.3.0.2712-Buffer-Overflow.html
- https://www.exploit-db.com/exploits/43391/
- https://www.exploit-db.com/exploits/45087/
- https://packetstormsecurity.com/files/145530/GetGo-Download-Manager-5.3.0.2712-Buffer-Overflow.html
- https://www.exploit-db.com/exploits/43391/
- https://www.exploit-db.com/exploits/45087/
