Detect CVE-2025-48703 - CWP Control Web Panel OS Command Injection in Splunk
Detects exploitation of CVE-2025-48703, an OS command injection vulnerability (CWE-78) in CWP Control Web Panel. This KEV-listed vulnerability allows attackers to inject and execute arbitrary OS commands through the web panel interface, potentially leading to full server compromise.
MITRE ATT&CK
SPL Detection Query
index=os OR index=web sourcetype=linux_audit OR sourcetype=syslog OR sourcetype=access_combined
| eval is_cwp_parent=if(match(parent_process, "httpd|apache2|nginx|cwpsrv|php-fpm|php"), 1, 0)
| eval is_suspicious_cmd=if(match(cmd, "id|whoami|uname|passwd|shadow|chmod|wget|curl|nc |ncat|socat|base64|/tmp/|/dev/shm"), 1, 0)
| eval is_cwp_path=if(match(_raw, "/usr/local/cwpsrv/|/opt/cwp/|cwp_api"), 1, 0)
| where (is_cwp_parent=1 AND is_suspicious_cmd=1) OR (is_cwp_path=1 AND is_suspicious_cmd=1)
| eval risk=case(
match(cmd, "shadow|/dev/shm|base64|chmod 777"), "critical",
match(cmd, "wget|curl|nc |ncat"), "high",
true(), "medium")
| stats count, values(cmd) as commands, values(src_ip) as source_ips, earliest(_time) as first_seen, latest(_time) as last_seen by host, user, parent_process, risk
| where count > 0
| sort -risk, -countDetects OS command injection exploitation in CWP Control Web Panel by identifying suspicious processes spawned from CWP web service parents. Aggregates by host and user to surface repeated injection attempts.
Data Sources
Required Sourcetypes
False Positives & Tuning
- Legitimate administrative shell commands issued through CWP terminal features
- Automated backup or maintenance scripts running under the web server user
- Penetration testing activity against the CWP host with prior authorization
- CWP plugin or module execution that spawns helper processes
Other platforms for CVE-2025-48703
Testing Methodology
Validate this detection against 4 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1CWP Command Injection via API Parameter
Expected signal: Linux audit log EXECVE event showing 'id' executed by the web server user (www-data/apache/cwp); web access log entry with URL-encoded semicolon in query parameter
- Test 2Reverse Shell Establishment Post-CWP Exploitation
Expected signal: Process creation event for bash spawned by www-data user with -i flag and /dev/tcp redirect; outbound TCP connection to attacker IP on port 4444 from the CWP host
- Test 3Credential Harvesting via /etc/shadow Access
Expected signal: Audit log showing www-data user attempting to read /etc/shadow; base64 encoding command in process arguments; file access event on /etc/shadow
- Test 4Dropper Download via Injected wget Command
Expected signal: wget process spawned by www-data with external URL argument; outbound HTTP GET to attacker-controlled server; file creation event in /tmp by web service user; chmod execution on downloaded file
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