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Advisories

Sublime Text 4192/3207 Local Privilege Escalation via Update Staging Mechanism

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severity
high
date
Affecting

  • Sublime Text 4 <= 4192

  • Sublime Text 3 <= 3207

CWE
  • CWE-494 Download of Code Without Integrity Check
CVSS
7
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Kyle Anthony
Description
Sublime Text for Windows through Build 4192 (Sublime Text 4) and Build 3207 (Sublime Text 3) contains a local privilege escalation vulnerability that allows unprivileged local attackers to execute arbitrary code with elevated privileges by abusing the update staging mechanism. Attackers can place a malicious DLL in the user-writable staging directory under %LOCALAPPDATA%, mark it read-only to bypass cleanup, and have the elevated installer copy it into the protected installation directory, causing the DLL to execute in the context of any higher-privileged user who subsequently launches the application.

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