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CVE-2019-9851 is a vulnerability in LibreOffice, specifically related to the LibreLogo programmable turtle vector graphics script. LibreLogo, when bundled with LibreOffice, can execute arbitrary Python commands embedded within a document. While previous protections (for CVE-2019-9848) blocked LibreLogo invocation from document event script handlers, a separate LibreOffice feature allowed documents to specify pre-installed scripts to execute on global script events (e.g., document-open). This allowed attackers to bypass the previous protection and execute arbitrary Python code when a document was opened, leveraging global script event handlers. The vulnerability was present in LibreOffice versions prior to 6.2.6.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single Metasploit module: 'libreoffice_logo_exec.rb', which exploits a code execution vulnerability in LibreOffice (CVE-2019-9851) via the LibreLogo macro. The module generates a malicious ODT file ('librefile.odt') that, when opened in LibreOffice, triggers a macro event to execute arbitrary Python code. The payload is typically a Python Meterpreter reverse shell, but can be any Python code. The exploit is weaponized, allowing for easy payload customization through Metasploit. The attack vector is local, requiring the target to open the crafted ODT file. The module references a template file ('librefile.erb') for ODT generation, and is designed for both Linux and Windows platforms where LibreOffice is installed and vulnerable.
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