CVE-2025-0636

8.4 HIGH

📋 TL;DR

CVE-2025-0636 is an OS command injection vulnerability in EMCLI that allows attackers to execute arbitrary commands on affected systems. This high-severity vulnerability affects organizations using vulnerable versions of EMCLI for system management. Successful exploitation could lead to complete system compromise.

💻 Affected Systems

Products:
  • EMCLI (Enterprise Manager Command Line Interface)
Versions: Specific versions not detailed in reference; consult vendor advisory for exact affected versions
Operating Systems: All platforms running EMCLI
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in how EMCLI processes certain inputs that can be manipulated to inject OS commands.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with administrative privileges, data exfiltration, lateral movement across the network, and persistent backdoor installation.

🟠

Likely Case

Unauthorized command execution leading to data theft, service disruption, or installation of malware/cryptominers.

🟢

If Mitigated

Limited impact due to network segmentation, least privilege access, and proper input validation controls.

🌐 Internet-Facing: HIGH if EMCLI is exposed to untrusted networks, as attackers can directly exploit the vulnerability.
🏢 Internal Only: MEDIUM to HIGH depending on internal network segmentation and user privilege levels.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Command injection vulnerabilities typically have low exploitation complexity once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific patched versions

Vendor Advisory: https://www.ericsson.com/en/about-us/security/psirt/cve-2025-0636

Restart Required: Yes

Instructions:

1. Review vendor advisory for affected versions. 2. Download and apply the latest EMCLI patch from official vendor sources. 3. Restart EMCLI services. 4. Verify the patch is applied successfully.

🔧 Temporary Workarounds

Input Validation Enhancement

all

Implement strict input validation for all EMCLI command parameters to reject special characters used in command injection.

# Custom validation scripts required based on implementation

Network Segmentation

linux

Restrict network access to EMCLI interfaces to only trusted administrative networks.

# Firewall rules example: iptables -A INPUT -p tcp --dport [EMCLI_PORT] -s [TRUSTED_NETWORK] -j ACCEPT
# iptables -A INPUT -p tcp --dport [EMCLI_PORT] -j DROP

🧯 If You Can't Patch

  • Implement strict network access controls to limit EMCLI exposure to only necessary administrative systems
  • Apply principle of least privilege to EMCLI service accounts and monitor for suspicious command execution

🔍 How to Verify

Check if Vulnerable:

Check EMCLI version against vendor advisory for affected versions. Review configuration for exposed interfaces.

Check Version:

emcli version

Verify Fix Applied:

Verify EMCLI version matches patched version from vendor advisory. Test command injection attempts to confirm they are blocked.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in EMCLI logs
  • Commands containing special characters like ;, |, &, $, (, ) in EMCLI input logs
  • Failed authentication attempts followed by command execution

Network Indicators:

  • Unexpected network connections from EMCLI hosts
  • Traffic to/from EMCLI ports from unauthorized sources

SIEM Query:

source="emcli.log" AND (command="*;*" OR command="*|*" OR command="*&*" OR command="*$(*" OR command="*`*")

🔗 References

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