Microsoft WinDbg, Remote Code Execution, CVE-2025-24043 (Critical)

The vulnerability CVE-2025-24043 in Microsoft WinDbg arises from improper verification of cryptographic signatures in the SOS (Son of Strike) debugging extension. This flaw allows an authorized attacker to exploit the network interface of WinDbg, leading to remote code execution (RCE). The attacker can craft malicious payloads that bypass signature checks, enabling them to execute arbitrary code on the target system. This vulnerability is particularly critical as it affects systems using vulnerable versions of WinDbg for debugging .NET Core applications. The exploitation occurs over a network, making it a significant threat to environments where WinDbg is used for remote debugging.

DailyCVE Form:

Platform: WinDbg
Version: Affected versions
Vulnerability: Remote Code Execution
Severity: Critical
Date: 2025-03-06

What Undercode Say:

Exploitation:

1. Exploit Code: Craft malicious payloads to bypass cryptographic signature checks in SOS.
2. Network Exploit: Use WinDbg’s remote debugging feature to deliver payloads.
3. Payload Execution: Execute arbitrary code on the target system.

Protection:

1. Update WinDbg: Install the latest version of WinDbg to patch the vulnerability.
2. Disable Remote Debugging: Temporarily disable remote debugging if not required.
3. Network Segmentation: Isolate systems using WinDbg from untrusted networks.

Commands:

1. Check Version: `windbg -version`

2. Update Command: `winget upgrade Microsoft.WinDbg`

3. Disable Remote Debugging: Set `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WinDbg\RemoteDebugging` to `0`.

Code:

1. Signature Verification Patch:

if (!VerifySignature(payload))
{
throw new SecurityException("Invalid signature detected.");
}

URLs:

1. Advisory: bash
2. Patch Download: bash
3. Bounty Program: bash

Analytics:

1. Affected Systems: .NET Core projects using WinDbg for debugging.
2. Risk Level: High due to RCE over network.
3. Mitigation Adoption: Monitor patch adoption rates via telemetry.

References:

1. CVE Details: bash
2. GitHub Discussion: bash

3. Security Email: Report issues to `[email protected]`.

(End of )

References:

Reported By: https://github.com/advisories/GHSA-hpw7-8qpc-34p3
Extra Source Hub:
Undercode

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