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* Home * Cyber Crime * Cyber warfare * APT * Data Breach * Deep Web * Digital ID * Hacking * Hacktivism * Intelligence * Internet of Things * Laws and regulations * Malware * Mobile * Reports * Security * Social Networks * Terrorism * ICS-SCADA * EXTENDED COOKIE POLICY * Contact me MUST READ Headlines * RCE in WordPress plugin Essential Addons for Elementor impacts hundreds of thousands of websites * Samba fixed CVE-2021-44142 remote code execution flaw * CISA adds 8 new vulnerabilities to its Known Exploited Vulnerabilities Catalog * Hundreds of thousands of routers exposed to Eternal Silence campaign via UPnP * Hackers stole $80M worth of cryptocurrency from the Qubit DeFi platform * DeepDotWeb admin sentenced to 97 months in prison for money laundering scheme * Home * Cyber Crime * Cyber warfare * APT * Data Breach * Deep Web * Digital ID * Hacking * Hacktivism * Intelligence * Internet of Things * Laws and regulations * Malware * Mobile * Reports * Security * Social Networks * Terrorism * ICS-SCADA * EXTENDED COOKIE POLICY * Contact me SAMBA FIXED CVE-2021-44142 REMOTE CODE EXECUTION FLAW January 31, 2022 By Pierluigi Paganini Powered by pixfutureⓘ SAMBA FIXES A CRITICAL FLAW, TRACKED AS CVE-2021-44142, THAT CAN ALLOW REMOTE ATTACKERS TO EXECUTE CODE WITH ROOT PRIVILEGES. Samba has addressed a critical vulnerability, tracked as CVE-2021-44142, that can be exploited by remote attackers to gain code execution with root privileges on servers running vulnerable software. Powered by pixfutureⓘ Samba is a free software re-implementation of the SMB networking protocol that provides file and print services for various Microsoft Windows clients and can integrate with a Microsoft Windows Server domain, either as a Domain Controller (DC) or as a domain member. Samba runs on most Unix-like systems, such as Linux, Solaris, AIX and the BSD variants, including Apple’s macOS Server, and macOS client (Mac OS X 10.2 and greater). The CVE-2021-44142 vulnerability is an out-of-bounds heap read/write that impacts the vfs_fruit VFS module when parsing EA metadata when opening files in smbd. This VFS module is part of the samba suite and provides enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver. “The specific flaw exists within the parsing of EA metadata when opening files in smbd. Access as a user that has write access to a file’s extended attributes is required to exploit this vulnerability. Note that this could be a guest or unauthenticated user if such users are allowed write access to file extended attributes.” reads the security advisory for this flaw. “The problem in vfs_fruit exists in the default configuration of the fruit VFS module using fruit:metadata=netatalk or fruit:resource=file. If both options are set to different settings than the default values, the system is not affected by the security issue.” The flaw affects all versions of Samba prior to 4.13.17 The flaw affects all versions of Samba prior to 4.13.17, an attacker can trigger this vulnerability without user interaction. The vulnerability was reported by the security researcher Orange Tsai from DEVCORE. Administrators can address the flaw by installing the 4.13.17, 4.14.12, and 4.15.5 releases or applying the security patches released by Samba Samba also provides a workaround that consists in removing ‘fruit’ from ‘vfs objects’ lines in the Samba configuration files. “As a workaround remove the “fruit” VFS module from the list of configured VFS objects in any “vfs objects” line in the Samba configuration smb.conf. Note that changing the VFS module settings.” “fruit:metadata or fruit:resource to use the unaffected setting causes all stored information to be inaccessible and will make it appear to macOS clients as if the information is lost.” concludes the advisory The US CERT Coordination Center (CERT/CC) published a list of vendors impacted by the CVE-2021-44142 bug. Follow me on Twitter: @securityaffairs and Facebook Pierluigi Paganini (SecurityAffairs – hacking, Samba) Powered by pixfutureⓘ Share this... Facebook Twitter Linkedin SHARE THIS: * Twitter * Print * LinkedIn * Facebook * More * * Tumblr * Pocket * * CVE-2021-44142hacking newsinformation security newsIT Information SecurityPierluigi PaganiniSambaSecurity Affairs -------------------------------------------------------------------------------- SHARE ON * * * * * * * PIERLUIGI PAGANINI Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”. -------------------------------------------------------------------------------- PREVIOUS ARTICLE CISA adds 8 new vulnerabilities to its Known Exploited Vulnerabilities Catalog NEXT ARTICLE RCE in WordPress plugin Essential Addons for Elementor impacts hundreds of thousands of websites -------------------------------------------------------------------------------- YOU MIGHT ALSO LIKE RCE IN WORDPRESS PLUGIN ESSENTIAL ADDONS FOR ELEMENTOR IMPACTS HUNDREDS OF THOUSANDS OF WEBSITES February 1, 2022 By Pierluigi Paganini CISA ADDS 8 NEW VULNERABILITIES TO ITS KNOWN EXPLOITED VULNERABILITIES CATALOG January 31, 2022 By Pierluigi Paganini * SPONSORED CONTENT * * PIXFUTURE * * DIGGING THE DEEP WEB: EXPLORING THE DARK SIDE OF THE WEB * CENTER FOR CYBER SECURITY AND INTERNATIONAL RELATIONS STUDIES * SUBSCRIBE SECURITY AFFAIRS NEWSLETTER * SECURITYAFFAIRS AWARDED AS BEST EUROPEAN CYBERSECURITY TECH BLOG AT EUROPEAN CYBERSECURITY BLOGGER AWARDS More Story CISA ADDS 8 NEW VULNERABILITIES TO ITS KNOWN EXPLOITED VULNERABILITIES CATALOG The US CISA added eight more flaws to its Known Exploited Vulnerabilities Catalog that are known to be used in attacks in the wild. The... Copyright 2021 Security Affairs by Pierluigi Paganini All Right Reserved. Back to top * Home * Cyber Crime * Cyber warfare * APT * Data Breach * Deep Web * Digital ID * Hacking * Hacktivism * Intelligence * Internet of Things * Laws and regulations * Malware * Mobile * Reports * Security * Social Networks * Terrorism * ICS-SCADA * EXTENDED COOKIE POLICY * Contact me This site uses cookies, including for analytics, personalization, and advertising purposes. For more information or to change your cookie settings, click here. If you continue to browse this site without changing your cookie settings, you agree to this use. Accept Read More Privacy and Cookies Policy Close PRIVACY OVERVIEW This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities... 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