CVE-2025-14185

6.3 MEDIUM

📋 TL;DR

This CVE describes a SQL injection vulnerability in Yonyou U8 Cloud enterprise software. Attackers can remotely exploit this by manipulating the 'usercode' parameter in a specific Java class file, potentially accessing or modifying database content. Organizations using affected versions of Yonyou U8 Cloud are at risk.

💻 Affected Systems

Products:
  • Yonyou U8 Cloud
Versions: 5.0, 5.0sp, 5.1, 5.1sp
Operating Systems: Any OS running Yonyou U8 Cloud
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the specific Java class file: nc/pubitf/erm/mobile/appservice/AppServletService.class

⚠️ 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

Complete database compromise leading to data theft, data manipulation, or full system takeover via subsequent attacks.

🟠

Likely Case

Unauthorized data access, potential extraction of sensitive business information, or credential harvesting.

🟢

If Mitigated

Limited impact with proper input validation, WAF protection, and network segmentation in place.

🌐 Internet-Facing: HIGH - The vulnerability can be exploited remotely and a public exploit exists.
🏢 Internal Only: MEDIUM - Internal attackers could exploit this, but external threat is higher due to remote nature.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit code is publicly available on GitHub, making attacks easier for threat actors.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available - vendor did not respond to disclosure

Restart Required: Yes

Instructions:

No official patch available. Monitor vendor channels for updates and apply immediately when released.

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Implement WAF rules to block SQL injection patterns targeting the vulnerable endpoint

Input Validation Filter

all

Add input validation for the 'usercode' parameter to reject SQL special characters

🧯 If You Can't Patch

  • Isolate the Yonyou U8 Cloud system from internet access using network segmentation
  • Implement strict access controls and monitor all database queries from the affected application

🔍 How to Verify

Check if Vulnerable:

Check if your Yonyou U8 Cloud version is 5.0, 5.0sp, 5.1, or 5.1sp and if the file nc/pubitf/erm/mobile/appservice/AppServletService.class exists

Check Version:

Check application documentation or admin interface for version information

Verify Fix Applied:

Test the vulnerable endpoint with SQL injection payloads to confirm they are blocked or sanitized

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in database logs
  • Multiple failed login attempts via the vulnerable endpoint
  • SQL error messages in application logs

Network Indicators:

  • HTTP requests containing SQL injection patterns to the AppServletService endpoint
  • Unusual database connection patterns from application servers

SIEM Query:

source="web_logs" AND uri="*AppServletService*" AND (request="*SELECT*" OR request="*UNION*" OR request="*OR 1=1*")

🔗 References

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