SharePoint Server CVE-2025-53770 Protection Vulnerability

漏洞信息

漏洞名称： SharePoint Server CVE-2025-53770 Protection Vulnerability

漏洞编号：

• CVE： CVE-2025-53770

漏洞类型： 信息泄露

漏洞等级： 高危

漏洞描述： SharePoint Server是微软推出的一款企业级协作平台，广泛应用于文档管理、内容管理和业务流程自动化。CVE-2025-53770是一个影响SharePoint Server的安全漏洞，可能导致信息泄露。该漏洞的根源在于SharePoint Server对特定类型的请求处理不当，攻击者可以通过构造恶意的请求来绕过安全限制，访问或篡改敏感信息。由于SharePoint Server在企业中的广泛使用，此漏洞可能对企业的数据安全构成严重威胁。攻击者无需认证即可利用此漏洞，且可以远程执行攻击，因此被评级为高危漏洞。企业应立即采取措施，如应用安全补丁或使用如SharePoint Security Monitor这样的安全监控解决方案来检测和防御此类攻击。

产品厂商： Microsoft

产品名称： SharePoint Server

影响版本： 2016/2019

来源： https://github.com/paolokappa/SharePointSecurityMonitor

类型： CVE-2025:github search

仓库文件

• .gitignore
• Install-SharePointSecurityMonitor.ps1
• LICENSE
• README.md
• changelog-file.md
• contributing-guide.md

来源概述

SharePoint Security Monitor

A comprehensive security monitoring solution for SharePoint Server with specific protection against CVE-2025-53770 and other threats. Features unified HTML reporting, automated threat detection, and real-time email alerts.

🚀 Features

Core Security Monitoring

• CVE-2025-53770 Protection: Specific detection patterns for known exploit attempts
• Webshell Detection: 15+ signature patterns for common webshells
• File Integrity Monitoring: Baseline comparison and change detection
• Failed Login Analysis: Tracks and alerts on suspicious authentication attempts
• Process Monitoring: Detects suspicious processes (mimikatz, psexec, etc.)
• Service Monitoring: Identifies potentially malicious services
• Network Analysis: Monitors external connections and known malicious IPs

Reporting & Alerts

• Unified HTML Reports: Single comprehensive email with visual dashboard
• Real-time Alerts: Immediate notifications for critical security events
• Daily Summaries: Scheduled reports at 8 AM with system status
• Local Report Storage: All reports saved as HTML for audit trail

Management Features

• Baseline System: Creates and maintains security baselines
• Management Console: Simple PowerShell interface for administration
• Scheduled Tasks: Automated hourly monitoring and daily reports
• Email Testing: Built-in email configuration verification

📋 Requirements

• Windows Server 2012 R2 or later
• SharePoint Server 2016/2019
• PowerShell 5.1 or later
• SMTP server for email alerts
• Administrative privileges

🔧 Installation

Quick Install

1. Download the repository to your SharePoint server
2. Open PowerShell as Administrator
3. Navigate to the installation directory
4. Run:

.\Install-SharePointSecurityMonitor.ps1

Manual Install

1. Clone the repository:

git clone https://github.com/yourusername/sharepoint-security-monitor.git

2. Copy to your SharePoint server at C:\GOLINE

3. Run the installation script:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
.\Install-SharePointSecurityMonitor.ps1

Configuration

During installation, you’ll be prompted for:

• Email recipient: Default soc@yourdomain.com
• SMTP server: Default smtp.yourdomain.com
• From address: Default sharepoint-security@yourdomain.com

Or provide parameters:

.\Install-SharePointSecurityMonitor.ps1 -AlertEmail "security@company.com" -SMTPServer "mail.company.com"

📖 Usage

Management Console

The management console provides easy access to all features:

## Check monitoring status
.\Manage-Monitoring.ps1 -Action Status

## Run immediate security scan with forced alert
.\Manage-Monitoring.ps1 -Action Test

## Test email configuration
.\Manage-Monitoring.ps1 -Action Email

## Reinitialize security baseline
.\Manage-Monitoring.ps1 -Action Baseline

## View recent alerts from logs
.\Manage-Monitoring.ps1 -Action Logs

## Open latest HTML report
.\Manage-Monitoring.ps1 -Action Report

Manual Monitoring

Run a manual security scan:

.\SharePoint-Monitor.ps1

Force an alert email (for testing):

.\SharePoint-Monitor.ps1 -ForceAlert

Send daily summary immediately:

.\SharePoint-Monitor.ps1 -SendDailySummary

📊 Report Structure

The unified HTML report includes:

Executive Summary

• Critical alerts count
• Warnings count
• System status (SECURE/WARNING/CRITICAL)

Security Metrics Dashboard

• Webshells found
• Exploit attempts
• Failed logins
• New web files
• Modified files
• Suspicious processes/services

System Health

• CPU usage
• Memory usage
• Disk space
• Performance metrics

Detailed Findings

• Alert details with timestamps
• Warning descriptions
• CVE-2025-53770 specific analysis
• Recommendations

🗂️ File Structure

C:\GOLINE\
├── SharePoint-Monitor.ps1           # Main monitoring script
├── Install-SharePointSecurityMonitor.ps1  # Installation script
├── Initialize-Baseline.ps1          # Baseline creation script
├── Test-Email.ps1                   # Email testing utility
├── Manage-Monitoring.ps1            # Management console
└── SharePoint_Monitoring\
    ├── Logs\                        # Daily log files
    ├── Reports\                     # HTML reports
    └── Baselines\                   # Security baselines

⚙️ Scheduled Tasks

The installer creates two scheduled tasks:

1. SharePoint Security Monitor

   • Runs every hour
   • Performs full security scan
   • Sends alerts if threats detected

2. SharePoint Daily Security Report

   • Runs daily at 8:00 AM
   • Sends comprehensive summary
   • Includes all events from past 24 hours

🔍 Detection Patterns

CVE-2025-53770 Specific

• Upload exploit attempts in IIS logs
• Malformed ASPX requests
• ViewState manipulation attempts
• Path traversal patterns

Webshell Signatures

• Code evaluation functions
• Base64 encoding/decoding
• Process execution methods
• Network operations
• File system manipulation
• Known webshell names

Suspicious Processes

• nc, ncat, netcat
• mimikatz
• procdump
• psexec
• wmic
• certutil
• bitsadmin

📧 Email Alerts

Alert Triggers

• Any webshell detection
• Failed logins > 5 per hour
• New ASPX/ASMX files created
• File modifications detected
• Suspicious processes running
• CVE exploit attempts

Email Format

• HTML formatted with responsive design
• Color-coded status indicators
• Detailed tables for findings
• Direct links to affected resources
• Timestamp and server information

🛠️ Troubleshooting

Email Not Sending

1. Test email configuration:

   .\Test-Email.ps1

2. Check SMTP server connectivity
3. Verify sender address is authorized
4. Check spam filters

Performance Issues

• Reduce scan frequency in scheduled task
• Limit paths in webshell detection
• Adjust log retention period

False Positives

• Review and update baseline
• Adjust detection thresholds in script
• Add exclusions for known safe files

🔐 Security Considerations

• Run with minimum required privileges
• Secure the installation directory
• Regularly review and update baselines
• Monitor the monitoring system logs
• Keep detection patterns updated

📝 Configuration Options

Edit SharePoint-Monitor.ps1 to customize:

## Thresholds
$FailedLoginThreshold = 5    # Trigger alert after X failed logins

## Paths to monitor
$WebPaths = @(
    "C:\inetpub\wwwroot\wss\VirtualDirectories",
    "C:\custom\path"
)

## Known malicious IPs
$KnownBadIPs = @(
    "192.168.1.100",
    "10.0.0.50"
)

🤝 Contributing

1. Fork the repository
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Create a Pull Request

Adding Detection Patterns

To add new webshell signatures:

$WebshellSignatures = @{
    "your_pattern_regex" = "Pattern Description"
}

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• SharePoint security community
• OWASP for webshell research
• Microsoft Security Response Center

📞 Support

• Create an issue for bugs
• Submit PRs for enhancements
• Check wiki for documentation

⚡ Quick Start Guide

1. Install: .\Install-SharePointSecurityMonitor.ps1
2. Verify: .\Test-Email.ps1
3. Check Status: .\Manage-Monitoring.ps1 -Action Status
4. View Report: .\Manage-Monitoring.ps1 -Action Report

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Note: This tool is provided as-is for security monitoring purposes. Always test in a non-production environment first.