Share
## https://sploitus.com/exploit?id=DD7B8E38-E9E8-52C9-B4F5-22CF6E561E60
# CVE-2026-22679: Weaver E-cology Unauthenticated RCE via dubboApi Debug Endpoint
[](https://nvd.nist.gov/vuln/detail/CVE-2026-22679)
[](https://www.first.org/cvss/v3.1/calculator)
[](https://cwe.mitre.org/data/definitions/94.html)
[](https://www.weavertech.com/)
## TL;DR
Weaver E-cology 10.0 (prior to build 20260312) contains a critical unauthenticated remote code execution vulnerability in the `/papi/esearch/data/devops/dubboApi/debug/method` endpoint. Attackers can inject arbitrary commands through the `interfaceName` and `methodName` POST parameters without authentication, achieving complete system compromise. Active exploitation detected since 2026-03-31 by Shadowserver Foundation.
**Quick Risk:** CVSS 9.3 - Completely unauthenticated, no user interaction required, network accessible endpoint leading directly to code execution.
---
## Table of Contents
1. [Quick Facts](#quick-facts)
2. [What is Weaver E-cology](#what-is-weaver-e-cology)
3. [Vulnerability Deep Dive](#vulnerability-deep-dive)
- [Root Cause Analysis](#root-cause-analysis)
- [Attack Flow Diagram](#attack-flow-diagram)
- [Vulnerable Endpoint Details](#vulnerable-endpoint-details)
4. [Impact Analysis](#impact-analysis)
5. [Affected Versions](#affected-versions)
6. [Detection](#detection)
- [Python Scanner](#python-scanner)
- [Nmap NSE Script](#nmap-nse-script)
7. [Indicators of Compromise](#indicators-of-compromise)
8. [Remediation](#remediation)
9. [References](#references)
10. [Author](#author)
---
## Quick Facts
| Aspect | Details |
|--------|---------|
| **CVE ID** | CVE-2026-22679 |
| **CVSS Score** | 9.3 (Critical) |
| **CVSS Vector** | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| **CWE** | CWE-94 (Code Injection) |
| **Vendor** | Weaver (Fanwei) |
| **Product** | E-cology 10.0 |
| **Vulnerability Type** | Unauthenticated Remote Code Execution (RCE) |
| **Affected Endpoint** | `/papi/esearch/data/devops/dubboApi/debug/method` |
| **Attack Vector** | Network / HTTP POST |
| **Authentication Required** | None |
| **Versions Affected** | 10.0 versions prior to build 20260312 |
| **Fixed Version** | Build 20260312 (released 2026-03-12) |
| **Active Exploitation** | Since 2026-03-31 (Shadowserver Foundation) |
| **Patch Method** | Complete removal of vulnerable endpoint |
---
## What is Weaver E-cology?
Weaver E-cology is one of China's most widely deployed enterprise OA (Office Automation) and collaboration platforms. Developed by Fanwei Group, it is extensively used across:
- **Government Agencies**: Central and provincial government departments
- **Large Enterprises**: Fortune 500 companies and state-owned enterprises
- **Financial Institutions**: Banks, insurance companies, and investment firms
- **Educational Institutions**: Universities and research organizations across Asia
### Key Capabilities
E-cology provides comprehensive enterprise solutions including:
- **Document Management**: Secure storage, versioning, and retrieval of enterprise documents
- **Workflow Automation**: Business process automation, approval chains, and task routing
- **Human Resources**: Employee management, payroll integration, and organizational hierarchies
- **Collaboration Tools**: Email, instant messaging, calendars, and project management
- **Portal Services**: Customizable enterprise portals and dashboards
### Deployment Footprint
E-cology deployments typically range from hundreds to thousands of users per organization. The platform is a critical infrastructure component for many organizations, making vulnerabilities in it extremely high impact.
---
## Vulnerability Deep Dive
### Root Cause Analysis
The vulnerability exists in the dubboApi debug endpoint, which was likely left accessible for development and troubleshooting purposes. The endpoint allows direct invocation of arbitrary methods through the Dubbo RPC framework without proper input validation or authentication checks.
**Vulnerable Code Pattern:**
```
POST /papi/esearch/data/devops/dubboApi/debug/method HTTP/1.1
Host: target.com
Content-Type: application/json
{
"interfaceName": "com.weaver.rpc.InvokeCommand",
"methodName": "executeCommand",
"parameters": ["id", "whoami", "cat /etc/passwd"]
}
```
The application directly processes these parameters and passes them to RPC command execution helpers without:
- Authentication verification
- Input validation/sanitization
- Method whitelist enforcement
- Parameter type checking
This allows attackers to specify arbitrary Dubbo interface methods that execute system commands.
### Attack Flow Diagram
```
Internet Attacker
|
| Sends unauthenticated POST request
| with malicious interfaceName/methodName
v
Weaver E-cology HTTP Server (port 80/443)
|
| No authentication check
| No authorization validation
v
/papi/esearch/data/devops/dubboApi/debug/method endpoint
|
| Direct parameter pass-through to Dubbo RPC layer
v
Dubbo RPC Framework (unvalidated interface invocation)
|
| Resolves arbitrary interface methods
| Attacker-controlled method name injection
v
Command Execution Helpers (vulnerable classes)
|
| Direct OS command execution via Runtime.exec()
| or similar OS command invocation mechanisms
v
System Command Execution
|
| Complete code execution as Weaver service user
| (typically root or high-privilege account)
|
+-> Read sensitive files (/etc/passwd, configs)
+-> Execute arbitrary binaries
+-> Create reverse shells
+-> Exfiltrate data
+-> Establish persistence
v
Complete System Compromise
```
### Vulnerable Endpoint Details
**Endpoint Path:** `/papi/esearch/data/devops/dubboApi/debug/method`
**HTTP Method:** POST
**Required Authentication:** None (zero authentication)
**Required Headers:** Standard HTTP headers (no special tokens or cookies required)
**Request Body Parameters:**
| Parameter | Type | Description | Example |
|-----------|------|-------------|---------|
| `interfaceName` | String | RPC interface class name (attacker-controlled) | `com.weaver.rpc.InvokeCommand` |
| `methodName` | String | Method name to invoke (attacker-controlled) | `executeCommand` |
| `parameters` | Array | Method parameters passed directly to execution logic | `["id"]` |
**Endpoint Exposure Flow:**
```
Weaver Deployment Architecture
===============================
Internet
|
v
Firewall (often misconfigured or open for "accessibility")
|
v
Web Server (port 80/443)
|
+--------> HTTP Request to any path
|
v
Route Dispatcher
|
+---> /login/Login.jsp > Requires authentication
|
+---> /wui/index.html > Requires authentication
|
+---> /papi/esearch/data/devops/dubboApi/debug/method
|
+---> UNPROTECTED - No authentication check!
|
v
Dubbo RPC Invoker (unrestricted method invocation)
|
v
OS Command Execution
|
v
System Compromise (RCE as web user)
```
### Typical Weaver Deployment Architecture
```
Corporate Network
=================
Internet > Firewall (port 80/443 open for E-cology)
|
v
Load Balancer (optional)
|
+---------+---------+
| | |
v v v
Node1 Node2 Node3
Web Web Web
Server Server Server
| | |
+----------+----+----+
|
v
Shared Storage
(Documents/Config)
|
v
Database Server
(MySQL/Oracle)
Each Web Server has:
- Weaver E-cology Java application
- Embedded Tomcat/JBoss container
- Dubbo RPC framework
- VULNERABLE /papi/esearch/data/devops/dubboApi/debug/method
endpoint (pre-patch)
```
---
## Impact Analysis
### Severity Assessment
| Impact Area | Severity | Details |
|-------------|----------|---------|
| **Confidentiality** | CRITICAL | Unauthenticated access to all system data, documents, user credentials, database contents |
| **Integrity** | CRITICAL | Ability to modify files, documents, database records, and system configurations |
| **Availability** | CRITICAL | System shutdown, resource exhaustion, destruction of data, service disruption |
| **Scope** | CHANGED | Weaver service user typically runs as root or high-privilege account; full system compromise |
### Real-World Attack Scenarios
#### Scenario 1: Government Data Breach
A nation-state or criminal group exploits E-cology deployments at government agencies to:
- Access classified documents and communications
- Exfiltrate citizen personal data
- Modify government records
- Establish persistent backdoors for long-term access
#### Scenario 2: Financial System Compromise
Attackers compromise E-cology instances at banks or financial institutions to:
- Access customer account information and transaction logs
- Modify financial records
- Execute unauthorized fund transfers
- Install payment processing malware
#### Scenario 3: Supply Chain Attack
Compromised E-cology instances are used as pivot points to:
- Access interconnected enterprise systems
- Spread laterally through corporate networks
- Establish persistence on critical infrastructure
- Facilitate multi-stage Advanced Persistent Threat (APT) campaigns
---
## Affected Versions
| Version | Build Range | Status | Patch Available |
|---------|-------------|--------|-----------------|
| 10.0 | = 20260312 | PATCHED | N/A (endpoint removed) |
| 9.x and earlier | All | UNKNOWN | Check with vendor |
**Note:** Other versions may be affected. Weaver has not released comprehensive version compatibility information. Organizations should test patches thoroughly before deployment.
---
## Detection
### Python Scanner
**Filename:** `CVE-2026-22679_Weaver_Ecology_RCE_detector.py`
**Description:** Safe, non-destructive detection script that identifies vulnerable Weaver E-cology instances by checking for endpoint accessibility.
```python
#!/usr/bin/env python3
"""
CVE-2026-22679 Weaver E-cology RCE Detection Scanner
Detects vulnerable dubboApi debug endpoint exposure
Author: Kerem Oruc (@keraattin)
"""
import requests
import argparse
import sys
from datetime import datetime
from urllib.parse import urljoin
import json
class WeaverEcologyScanner:
def __init__(self, timeout=10, verify_ssl=False):
self.timeout = timeout
self.verify_ssl = verify_ssl
self.vulnerable_endpoint = "/papi/esearch/data/devops/dubboApi/debug/method"
self.weaver_identifiers = [
"/login/Login.jsp",
"/wui/index.html",
"/UploadFiles/",
]
def is_weaver_ecology(self, base_url):
"""Identify if target is Weaver E-cology instance"""
for path in self.weaver_identifiers:
try:
url = urljoin(base_url, path)
response = requests.get(
url,
timeout=self.timeout,
verify=self.verify_ssl,
allow_redirects=False
)
if response.status_code in [200, 302, 301]:
return True
except:
continue
return False
def check_vulnerability(self, base_url):
"""Check if dubboApi debug endpoint is accessible"""
try:
url = urljoin(base_url, self.vulnerable_endpoint)
# Test with GET request
response = requests.get(
url,
timeout=self.timeout,
verify=self.verify_ssl,
allow_redirects=False
)
# 200 (success), 405 (method not allowed), or 400 (bad request)
# all indicate endpoint exists
if response.status_code in [200, 400, 405]:
return True, response.status_code
# Test with POST request as fallback
response = requests.post(
url,
json={},
timeout=self.timeout,
verify=self.verify_ssl,
allow_redirects=False
)
if response.status_code in [200, 400, 405]:
return True, response.status_code
return False, response.status_code
except requests.exceptions.RequestException:
return False, None
def scan_target(self, base_url):
"""Scan single target"""
result = {
"target": base_url,
"timestamp": datetime.utcnow().isoformat() + "Z",
"is_weaver": False,
"vulnerable": False,
"endpoint_status": None,
"risk_level": "LOW"
}
# Normalize URL
if not base_url.startswith(("http://", "https://")):
base_url = "http://" + base_url
# Check if Weaver E-cology
is_weaver = self.is_weaver_ecology(base_url)
result["is_weaver"] = is_weaver
if not is_weaver:
result["risk_level"] = "LOW"
return result
# Check vulnerability
is_vulnerable, status_code = self.check_vulnerability(base_url)
result["endpoint_status"] = status_code
result["vulnerable"] = is_vulnerable
if is_vulnerable:
result["risk_level"] = "CRITICAL"
else:
result["risk_level"] = "UNKNOWN"
return result
def format_report(self, results):
"""Format scan results for display"""
report = []
report.append("\n[*] CVE-2026-22679 Weaver E-cology RCE Detection Scanner")
report.append(f"[*] Scanning {len(results)} target(s)...")
report.append("[*] Detection method: dubboApi debug endpoint accessibility check")
report.append(f"[*] Endpoint: {self.vulnerable_endpoint}")
report.append("[*] NOTE: No commands are executed. Safe, non-destructive scan.\n")
report.append("=" * 70)
for result in results:
report.append(f"\nTarget: {result['target']}")
report.append(f"Scan Time: {result['timestamp']}")
report.append(f"Risk Level: {result['risk_level']}")
report.append("=" * 70)
report.append(f" Is Weaver E-cology: {'YES' if result['is_weaver'] else 'NO'}")
report.append(f" Debug Endpoint: {'ACCESSIBLE' if result['vulnerable'] else 'NOT ACCESSIBLE'}")
report.append(f" Endpoint HTTP Status: {result['endpoint_status']}")
report.append(f" Vulnerable: {'YES' if result['vulnerable'] else 'NO'}")
if result["vulnerable"]:
report.append("")
report.append(" *** CRITICAL: dubboApi debug endpoint is exposed! ***")
report.append(" *** Unauthenticated RCE via interfaceName/methodName injection ***")
report.append(f" *** Endpoint: {self.vulnerable_endpoint} ***")
report.append(" *** Update to build 20260312 or block this endpoint immediately ***")
report.append("\n" + "=" * 70)
return "\n".join(report)
def main():
parser = argparse.ArgumentParser(
description="CVE-2026-22679 Weaver E-cology RCE Detection Scanner"
)
parser.add_argument("targets", nargs="+", help="Target URL(s) to scan (e.g., http://target.com)")
parser.add_argument("--timeout", type=int, default=10, help="Request timeout in seconds")
parser.add_argument("--no-verify-ssl", action="store_true", help="Disable SSL verification")
args = parser.parse_args()
scanner = WeaverEcologyScanner(timeout=args.timeout, verify_ssl=not args.no_verify_ssl)
results = []
for target in args.targets:
result = scanner.scan_target(target)
results.append(result)
print(scanner.format_report(results))
# Exit with error if any vulnerabilities found
if any(r["vulnerable"] for r in results):
sys.exit(1)
sys.exit(0)
if __name__ == "__main__":
main()
```
**Usage Examples:**
```bash
# Scan single target
python3 CVE-2026-22679_Weaver_Ecology_RCE_detector.py http://target.com
# Scan multiple targets
python3 CVE-2026-22679_Weaver_Ecology_RCE_detector.py http://target1.com http://target2.com
# Scan with custom timeout
python3 CVE-2026-22679_Weaver_Ecology_RCE_detector.py http://target.com --timeout 5
# Scan with SSL verification disabled
python3 CVE-2026-22679_Weaver_Ecology_RCE_detector.py https://target.com --no-verify-ssl
```
**Example Output:**
```
[*] CVE-2026-22679 Weaver E-cology RCE Detection Scanner
[*] Scanning 1 target(s)...
[*] Detection method: dubboApi debug endpoint accessibility check
[*] Endpoint: /papi/esearch/data/devops/dubboApi/debug/method
[*] NOTE: No commands are executed. Safe, non-destructive scan.
======================================================================
Target: http://10.0.0.10
Scan Time: 2026-04-15T12:00:00Z
Risk Level: CRITICAL
======================================================================
Is Weaver E-cology: YES
Debug Endpoint: ACCESSIBLE
Endpoint HTTP Status: 200
Vulnerable: YES
*** CRITICAL: dubboApi debug endpoint is exposed! ***
*** Unauthenticated RCE via interfaceName/methodName injection ***
*** Endpoint: /papi/esearch/data/devops/dubboApi/debug/method ***
*** Update to build 20260312 or block this endpoint immediately ***
======================================================================
```
### Nmap NSE Script
**Filename:** `CVE-2026-22679_Weaver_Ecology_RCE.nse`
**Description:** Nmap NSE script for vulnerability detection integrated with Nmap workflows.
```lua
-- CVE-2026-22679 Weaver E-cology RCE Detection Script
-- Detects vulnerable dubboApi debug endpoint exposure
-- Author: Kerem Oruc (@keraattin)
local http = require "http"
local shortport = require "shortport"
local stdnse = require "stdnse"
local vulns = require "vulns"
description = [[
Detects Weaver E-cology instances vulnerable to CVE-2026-22679.
This vulnerability allows unauthenticated remote code execution through
the exposed dubboApi debug endpoint at /papi/esearch/data/devops/dubboApi/debug/method
]]
author = "Kerem Oruc (@keraattin)"
license = "Same as Nmap--See https://nmap.org/COPYING"
categories = {"vuln", "safe"}
portrule = shortport.http
local VULNERABLE_ENDPOINT = "/papi/esearch/data/devops/dubboApi/debug/method"
local WEAVER_IDENTIFIERS = {
"/login/Login.jsp",
"/wui/index.html",
"/UploadFiles/"
}
local function is_weaver_ecology(host, port)
for _, path in ipairs(WEAVER_IDENTIFIERS) do
local response = http.get(host, port, path)
if response.status and response.status >= 200 and response.status
Deny from all
```
2. **Monitor for Active Exploitation**
- Review web server access logs for POST requests to vulnerable endpoint
- Check for suspicious Dubbo RPC invocations
- Monitor system processes for unexpected child processes
- Set up alerts for endpoint access
3. **Restrict Network Access**
- Limit access to Weaver E-cology instances to internal networks only
- Disable internet-facing exposure if possible
- Implement network segmentation
- Use VPN/bastion hosts for remote access
### Short-term Actions (1-7 days)
1. **Apply Official Patch**
Update to Weaver E-cology build 20260312 or later:
```bash
# Contact Weaver support or download from official repository
# Backup current installation
cp -r /opt/ecology /opt/ecology.backup.20260415
# Apply patch
/opt/ecology/bin/upgrade.sh --version 20260312
# Verify patch application
curl -X POST http://localhost/papi/esearch/data/devops/dubboApi/debug/method
# Should return 404 after patch
```
2. **Review Access Logs**
- Analyze all web server logs since deployment
- Look for patterns matching indicators of compromise
- Check for successful RCE execution patterns
- Determine scope of potential compromise
3. **Conduct Host Forensics**
- Check for unexpected user accounts
- Scan for webshells or backdoors
- Review recent file modifications
- Check system logs for suspicious activity
### Long-term Actions (1-4 weeks)
1. **Full System Assessment**
- Determine if system was exploited before patching
- Review all RCE attempts and system modifications
- Assess damage to business data and systems
- Initiate incident response if compromise confirmed
2. **Implement Network Segmentation**
- Deploy Weaver instances in isolated network segment
- Implement strict inbound/outbound filtering
- Use Web Application Firewall (WAF)
- Require VPN for administrative access
3. **Hardening**
- Disable unnecessary debug endpoints
- Implement request signing/validation
- Deploy runtime application self-protection (RASP)
- Regular security audits and penetration testing
4. **Update Security Monitoring**
- Implement endpoint detection and response (EDR)
- Deploy SIEM for centralized log analysis
- Create alerts for RPC endpoint access patterns
- Monitor for similar vulnerabilities in other applications
---
## References
- [CVE-2026-22679 NVD Details](https://nvd.nist.gov/vuln/detail/CVE-2026-22679)
- [CWE-94: Improper Control of Generation of Code](https://cwe.mitre.org/data/definitions/94.html)
- [Shadowserver Foundation - Active Exploitation Report](https://shadowserver.org/)
- [Weaver E-cology Official Security Advisory](https://www.weavertech.com/security)
- [Dubbo RPC Framework Security Guide](https://dubbo.apache.org/en/docs/v3.0/overview/)
- [CVSS v3.1 Specification](https://www.first.org/cvss/v3.1/specification-document)
---
## Author
**Kerem Oruc** (@keraattin)
- GitHub: [https://github.com/keraattin](https://github.com/keraattin)
- Twitter: [https://twitter.com/keraattin](https://twitter.com/keraattin)
---
**Disclaimer:** This information is provided for educational and defensive security purposes only. Unauthorized access to computer systems is illegal. Always obtain proper authorization before testing or accessing systems you do not own.
**Last Updated:** 2026-04-15