CVE-2020-37060: Atomic Alarm Clock Privilege Escalation

CVE-2020-37060 Overview

CVE-2020-37060 is a local privilege escalation vulnerability affecting Atomic Alarm Clock version 6.3. The vulnerability stems from an unquoted service path configuration (CWE-428) that allows local attackers with limited user privileges to execute arbitrary code with SYSTEM-level privileges. By placing a malicious executable named Program.exe in an appropriate directory, attackers can achieve persistent system-level access whenever the vulnerable service starts.

Critical Impact

Local attackers can escalate privileges to SYSTEM level, enabling complete system compromise, persistent backdoor installation, and lateral movement within enterprise environments.

Affected Products

• Atomic Alarm Clock 6.3

Discovery Timeline

• 2026-01-30 - CVE CVE-2020-37060 published to NVD
• 2026-02-04 - Last updated in NVD database

Technical Details for CVE-2020-37060

Vulnerability Analysis

The vulnerability exists due to improper handling of the Windows service executable path in Atomic Alarm Clock 6.3. When a Windows service path contains spaces and is not enclosed in quotation marks, Windows attempts to resolve the path by parsing it incrementally at each space. This behavior can be exploited by an attacker who places a malicious executable at one of the parsed path locations.

The unquoted service path vulnerability (CWE-428) is a well-documented Windows privilege escalation technique that has been successfully exploited in numerous real-world attacks. When the service runs under the SYSTEM account, any code executed through this path hijacking inherits those elevated privileges.

Root Cause

The root cause is the failure to properly quote the service binary path during installation. When the service path contains spaces (such as C:\Program Files\Atomic Alarm Clock\atomicalarmclock.exe), Windows interprets this path ambiguously without proper quoting. The system attempts to execute:

1. C:\Program.exe
2. C:\Program Files\Atomic.exe
3. And so on, until finding a valid executable

If an attacker can write to any of these intermediate paths (commonly C:\Program.exe if the root drive has weak permissions), their malicious code will execute with the service's elevated privileges.

Attack Vector

This is a local attack vector requiring the attacker to have authenticated access to the target system. The attack requires the ability to write files to directories in the service path resolution chain. Upon service restart or system reboot, the malicious executable is loaded with SYSTEM privileges, providing the attacker with complete control over the compromised host.

The exploitation technique involves placing a malicious executable (typically named Program.exe) in the C:\ root directory or another path segment location. When the vulnerable service starts, Windows locates and executes this file with elevated privileges instead of the legitimate service binary.

Detection Methods for CVE-2020-37060

Indicators of Compromise

• Presence of unexpected executables named Program.exe or Atomic.exe in the C:\ root directory or C:\Program Files\ directory
• Unusual process execution chains where services.exe spawns suspicious child processes
• Registry modifications to service ImagePath values showing unquoted paths containing spaces
• Unexpected files with recent modification timestamps in system root directories

Detection Strategies

• Query Windows services using wmic service get name,pathname or PowerShell Get-WmiObject to identify unquoted service paths containing spaces
• Monitor file creation events in C:\ and C:\Program Files\ for executables matching path segment names
• Implement endpoint detection rules to alert on SYSTEM-level process spawning from non-standard locations
• Use SentinelOne's behavioral AI to detect privilege escalation patterns associated with service path hijacking

Monitoring Recommendations

• Enable auditing for file creation events in directories commonly targeted by unquoted path attacks
• Configure alerts for new service registrations and modifications to existing service configurations
• Monitor process creation events for SYSTEM-level processes originating from unexpected executable paths
• Leverage SentinelOne Singularity XDR to correlate service-related events across endpoints for enterprise-wide visibility

How to Mitigate CVE-2020-37060

Immediate Actions Required

• Audit all installed services for unquoted paths using wmic service get name,pathname | findstr /i "Program Files"
• Remove any suspicious executables from C:\ root and intermediate path directories
• Restrict write permissions on the system root drive and C:\Program Files\ directory
• Consider uninstalling Atomic Alarm Clock 6.3 until a patched version is available

Patch Information

No official vendor patch has been confirmed at this time. The vendor website is available at Drive Software Homepage. Users should check for updated versions that address this vulnerability. Additional technical details are available in the VulnCheck Advisory for Atomic Alarm Clock and Exploit-DB #48352.

Workarounds

• Manually correct the service path by adding quotation marks around the full executable path in the Windows Registry
• Remove write permissions for non-administrative users on potential hijack locations (C:\, C:\Program Files\)
• Configure Windows Defender Application Control (WDAC) or AppLocker policies to block execution of unsigned binaries from system root directories
• Disable or remove the vulnerable service if the application is not required for business operations

# Manual service path remediation via Registry
# Locate: HKLM\SYSTEM\CurrentControlSet\Services\AtomicAlarmClock
# Modify ImagePath from:
#   C:\Program Files\Atomic Alarm Clock\atomicalarmclock.exe
# To:
#   "C:\Program Files\Atomic Alarm Clock\atomicalarmclock.exe"

# PowerShell command to identify vulnerable services
Get-WmiObject Win32_Service | Where-Object {
    $_.PathName -notmatch '^"' -and 
    $_.PathName -match '\s' -and 
    $_.PathName -notmatch '^[A-Za-z]:\\Windows\\'
} | Select-Object Name, PathName, StartMode, State