CVE-2022-24467

7.2 HIGH

📋 TL;DR

CVE-2022-24467 is a remote code execution vulnerability in Azure Site Recovery that allows authenticated attackers to execute arbitrary code on affected systems. This affects organizations using Azure Site Recovery for disaster recovery scenarios. Attackers could potentially gain control of the recovery infrastructure.

💻 Affected Systems

Products:
  • Microsoft Azure Site Recovery
Versions: Specific versions not publicly detailed, but all unpatched versions prior to Microsoft's security update
Operating Systems: Windows Server (hosting Azure Site Recovery components)
Default Config Vulnerable: ⚠️ Yes
Notes: Requires Azure Site Recovery to be deployed and configured. The vulnerability affects the management components of the service.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of Azure Site Recovery infrastructure leading to data exfiltration, ransomware deployment across recovery targets, and disruption of disaster recovery capabilities.

🟠

Likely Case

Unauthorized access to recovery infrastructure allowing data theft, configuration manipulation, and potential lateral movement to connected systems.

🟢

If Mitigated

Limited impact with proper network segmentation, least privilege access, and monitoring in place, though the vulnerability still presents significant risk.

🌐 Internet-Facing: MEDIUM - While authentication is required, exposed Azure Site Recovery endpoints could be targeted by credential-based attacks.
🏢 Internal Only: HIGH - Internal attackers or compromised accounts could exploit this to gain elevated privileges and control disaster recovery systems.

🎯 Exploit Status

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

Requires authentication to Azure Site Recovery. Microsoft has not disclosed technical details to prevent exploitation while patches are deployed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Security update released by Microsoft - specific version varies by Azure Site Recovery deployment

Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24467

Restart Required: Yes

Instructions:

1. Apply Microsoft's security update for Azure Site Recovery. 2. Restart affected Azure Site Recovery components. 3. Verify the update was successfully applied through Azure Portal or PowerShell.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict network access to Azure Site Recovery management interfaces to only authorized administrative networks

Azure NSG rules or firewall configurations to limit source IPs

Enhanced Authentication Controls

all

Implement multi-factor authentication and strict access controls for Azure Site Recovery administrative accounts

Azure AD Conditional Access policies or MFA enforcement

🧯 If You Can't Patch

  • Isolate Azure Site Recovery management interfaces behind VPN or private endpoints
  • Implement strict monitoring and alerting for unusual authentication or configuration changes

🔍 How to Verify

Check if Vulnerable:

Check Azure Site Recovery component versions against Microsoft's security bulletin and verify if security updates have been applied

Check Version:

Azure PowerShell: Get-AzRecoveryServicesAsrFabric | Select-Object Name, Type, FabricObjectId

Verify Fix Applied:

Verify the security update is installed through Azure Portal (Site Recovery > Infrastructure > Servers) or using PowerShell: Get-AzRecoveryServicesAsrFabric

📡 Detection & Monitoring

Log Indicators:

  • Unusual authentication patterns to Azure Site Recovery
  • Unexpected process execution on Site Recovery servers
  • Configuration changes to recovery plans or replication settings

Network Indicators:

  • Unusual traffic patterns to Azure Site Recovery management ports (default 9443)
  • Connection attempts from unexpected source IPs

SIEM Query:

Azure Sentinel: SecurityEvent | where EventID == 4625 or EventID == 4688 | where Computer contains "ASR" or ProcessName contains "AzureSiteRecovery"

🔗 References

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