CVE-2020-24772

HIGH

Clash - Origin Validation Error

Title source: rule

Description

In Dreamacro Clash for Windows v0.11.4, an attacker could embed a malicious iframe in a website with a crafted URL that would launch the Clash Windows client and force it to open a remote SMB share. Windows will perform NTLM authentication when opening the SMB share and that request can be relayed (using a tool like responder) for code execution (or captured for hash cracking).

References (1)

[Exploit, Issue Tracking, Third Party Advisory] https://github.com/Dreamacro/clash/issues/910

Scores

CVSS v3 8.8

EPSS 0.0012

EPSS Percentile 31.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

CWE

CWE-346

Status published

Affected Products (1)

clash_project/clash

Timeline

Published Mar 21, 2022

Tracked Since Feb 18, 2026