CVE-2020-24772
NixOS vulnerability analysis and mitigation

Overview

In Dreamacro Clash for Windows v0.11.4, a vulnerability was discovered that allows attackers to embed a malicious iframe in a website with a crafted URL. This vulnerability (CVE-2020-24772) enables the attacker to launch the Clash Windows client and force it to open a remote SMB share (NVD).

Technical details

When exploited, Windows will perform NTLM authentication when opening the SMB share. The authentication request can be intercepted and relayed using tools like responder for code execution, or captured for hash cracking purposes. The vulnerability has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (NVD).

Impact

The vulnerability can lead to unauthorized access as it allows attackers to capture NTLM authentication hashes. These captured hashes can then be used for offline cracking attempts or relay attacks, potentially leading to remote code execution on the affected system (NVD).

Additional resources


SourceThis report was generated using AI

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