LibreOffice Vulnerable to Code Execution in URL Mouseover Preview Feature
Researcher Alex Inführ discovered that LibreOffice 6.1.0-6.1.3.1 is susceptible to a code injection attack if a user hovers their mouse over a malicious URL.
Contexte
Researcher Alex Inführ disclosed a LibreOffice vulnerability (CVE-2018-16858) in versions 6.1.0-6.1.3.1 which shows that code injection is possible on both Linux and Windows versions when a user hovers their mouse over a malicious URL.
Update: Tenable Research was able to confirm that this vulnerability is also exploitable on macOS by editing the Proof of Concept (PoC) code.
Analyse
While this vulnerability does require user interaction, an OpenDocument Text (ODT) file containing a malicious URL is not likely to be flagged by most corporate security defenses. There isn’t any malicious code or otherwise altered elements to the document. It wouldn’t be seen as malware, and the text can be changed to the same color as the document background to make it invisible to the average user.
Furthermore, when the vulnerability is exploited, it doesn’t generate a warning dialogue of any kind. As soon as the user hovers over the malicious URL, the code is executed immediately. The current Still (Stable) Branch of LibreOffice (6.0.7) is not susceptible to this vulnerability.
Below is the researcher’s Proof of Concept video demonstrating an invisible URL opening a command prompt on the vulnerable version:
Solution
LibreOffice addressed this vulnerability in release 6.1.3.2, and upgrading to that version or later should mitigate the vulnerability.
Identification des systèmes affectés
A list of Nessus plugins to identify this vulnerability can be found here as they're released.
Où trouver plus d'informations
- Libreoffice (CVE-2018-16858) - Remote Code Execution via Macro/Event execution
- Latest Versions of LibreOffice
Rejoignez l'équipe SRT de Tenable sur Tenable Community.
Apprenez-en plus sur Tenable, la première plateforme de Cyber Exposure qui vous permet de gérer votre surface d'attaque moderne de manière globale.
Get a free 60-day trial of Tenable.io Vulnerability Management.
Articles connexes
How Risk-based Vulnerability Management Boosts Your Modern IT Environment's Security Posture
July 11, 2024Vulnerability assessments and vulnerability management sound similar – but they’re not. As a new Enterprise Strategy Group white paper explains, it’s key to understand their differences and to shift from ad-hoc vulnerability assessments to continuous, risk-based vulnerability management (RBVM). Read on to check out highlights from this Tenable-commissioned study and learn how RBVM helps organizations attain a solid security and risk posture in hybrid, complex and multi-cloud environments.
Microsoft’s July 2024 Patch Tuesday Addresses 138 CVEs (CVE-2024-38080, CVE-2024-38112)
July 9, 2024Microsoft addresses 138 CVEs in its July 2024 Patch Tuesday release, with five critical vulnerabilities and three zero-day vulnerabilities, two of which were exploited in the wild.
CVE-2024-5806: Progress MOVEit Transfer Authentication Bypass Vulnerability
June 25, 2024Progress Software has patched a high severity authentication bypass in the MOVEit managed file transfer (MFT) solution. As MOVEit has been a popular target for ransomware gangs and other threat actors, we strongly recommend prioritizing patching of this vulnerability.
Cybersecurity Snapshot: CISA Tells Tech Vendors To Squash Command Injection Bugs, as OpenSSF Calls on Developers To Boost Security Skills
July 12, 2024Check out CISA’s call for weeding out preventable OS command injection vulnerabilities. Plus, the Linux Foundation and OpenSSF spotlight the lack of cybersecurity expertise among SW developers. Meanwhile, GenAI deployments have tech leaders worried about data privacy and data security. And get the latest on FedRAMP, APT40 and AI-powered misinformation!
How Risk-based Vulnerability Management Boosts Your Modern IT Environment's Security Posture
July 11, 2024Vulnerability assessments and vulnerability management sound similar – but they’re not. As a new Enterprise Strategy Group white paper explains, it’s key to understand their differences and to shift from ad-hoc vulnerability assessments to continuous, risk-based vulnerability management (RBVM). Read on to check out highlights from this Tenable-commissioned study and learn how RBVM helps organizations attain a solid security and risk posture in hybrid, complex and multi-cloud environments.
Microsoft’s July 2024 Patch Tuesday Addresses 138 CVEs (CVE-2024-38080, CVE-2024-38112)
July 9, 2024Microsoft addresses 138 CVEs in its July 2024 Patch Tuesday release, with five critical vulnerabilities and three zero-day vulnerabilities, two of which were exploited in the wild.
- Vulnerability Management