CVE-2024-38108

9.3 CRITICAL

📋 TL;DR

This is a spoofing vulnerability in Azure Stack Hub that allows attackers to inject malicious content into web applications, potentially tricking users into performing unintended actions. It affects organizations using Azure Stack Hub with vulnerable configurations. The vulnerability stems from improper neutralization of input during web page generation.

💻 Affected Systems

Products:
  • Microsoft Azure Stack Hub
Versions: Specific versions as listed in Microsoft advisory
Operating Systems: Azure Stack Hub integrated systems
Default Config Vulnerable: ⚠️ Yes
Notes: Requires attacker to have some level of access to inject content into web applications

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could perform sophisticated phishing attacks, steal credentials, or redirect users to malicious sites by injecting content into legitimate Azure Stack Hub interfaces.

🟠

Likely Case

Attackers would inject malicious scripts or content into web interfaces to perform session hijacking, credential theft, or redirect users to phishing sites.

🟢

If Mitigated

With proper input validation and output encoding controls, the risk is significantly reduced to minimal impact on application integrity.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires ability to inject content into web applications, typically through user input fields or parameters

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Microsoft Security Update Guide for specific patch versions

Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38108

Restart Required: Yes

Instructions:

1. Review Microsoft Security Update Guide for CVE-2024-38108
2. Apply the latest Azure Stack Hub update from Microsoft
3. Follow Azure Stack Hub update procedures for your deployment
4. Verify update completion and system functionality

🔧 Temporary Workarounds

Implement Input Validation

all

Add strict input validation and output encoding for all user-controlled inputs in web applications

Content Security Policy

all

Implement Content Security Policy headers to restrict script execution sources

🧯 If You Can't Patch

  • Implement strict input validation and output encoding in all web applications
  • Deploy web application firewall with anti-spoofing rules and monitor for injection attempts

🔍 How to Verify

Check if Vulnerable:

Check Azure Stack Hub version against Microsoft's security advisory for affected versions

Check Version:

Use Azure Stack Hub administrative portal or PowerShell commands to check current version

Verify Fix Applied:

Verify Azure Stack Hub is running patched version from Microsoft's security update

📡 Detection & Monitoring

Log Indicators:

  • Unusual input patterns in web application logs
  • Multiple failed input validation attempts
  • Suspicious content injection attempts

Network Indicators:

  • Unexpected content in HTTP responses
  • Suspicious script tags or redirects in web traffic

SIEM Query:

Search for patterns of content injection or script execution in web application logs

🔗 References

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