Security News
On December 9, 2021, a tweet linking to a 0-day proof of concept exploit for the Log4Shell vulnerability on GitHub set the internet on fire and sent companies scrambling to mitigate, patch and then patch again as additional PoCs appeared. Public vulnerability disclosure - i.e., the act of revealing to the world the existence of a bug in a piece of software, a library, extension, etc.
China's internet regulator, the Ministry of Industry and Information Technology, has suspended a partnership with Alibaba Cloud, the cloud computing subsidiary of e-commerce giant Alibaba Group, for six months for failing to promptly report a critical security vulnerability affecting the broadly used Log4j logging library. The development was reported by Reuters and South China Morning Post, citing a report from 21st Century Business Herald, a Chinese business-news daily newspaper.
Microsoft has rolled out Patch Tuesday updates to address multiple security vulnerabilities in Windows and other software, including one actively exploited flaw that's being abused to deliver Emotet, TrickBot, or Bazaloader malware payloads. It's worth noting that this is in addition to the 21 flaws resolved in the Chromium-based Microsoft Edge browser.
Critical RCE 0day in Apache Log4j library exploited in the wildA critical zero-day vulnerability in Apache Log4j, a widely used Java logging library, is being leveraged by attackers in the wild.Kali Linux 2021.4 released: Wider Samba compatibility, The Social-Engineer Toolkit, new tools, and more!Offensive Security released Kali Linux 2021.4, which comes with a number of improvements: wider Samba compatibility, switching package manager mirrors, enhanced Apple M1 support, Kaboxer theming, updates to Xfce, GNOME and KDE, Raspberry Pi Zero 2 W + USBArmory MkII ARM images, as well as new tools.
A critical zero-day vulnerability in Apache Log4j, a widely used Java logging library, is being leveraged by attackers in the wild - for now primarily to deliver coin miners.Reported to the Apache Software Foundation by Chen Zhaojun of Alibaba Cloud Security Team, the bug has now apparently been fixed in Log4j v2.15.0, just as a PoC has popped up on GitHub and there are reports that attackers are already attempting to compromise vulnerable applications/servers.
Microsoft has released security updates as part of its monthly Patch Tuesday release cycle to address 55 vulnerabilities across Windows, Azure, Visual Studio, Windows Hyper-V, and Office, including fixes for two actively exploited zero-day flaws in Excel and Exchange Server that could be abused to take control of an affected system. The most critical of the flaws are CVE-2021-42321 and CVE-2021-42292, each concerning a post-authentication remote code execution flaw in Microsoft Exchange Server and a security bypass vulnerability impacting Microsoft Excel versions 2013-2021 respectively.
Microsoft has released security updates as part of its monthly Patch Tuesday release cycle to address 55 vulnerabilities across Windows, Azure, Visual Studio, Windows Hyper-V, and Office, including fixes for two actively exploited zero-day flaws in Excel and Exchange Server that could be abused to take control of an affected system. The most critical of the flaws are CVE-2021-42321 and CVE-2021-42292, each concerning a post-authentication remote code execution flaw in Microsoft Exchange Server and a security bypass vulnerability impacting Microsoft Excel versions 2013-2021 respectively.
Google has rolled out its monthly security patches for Android with fixes for 39 flaws, including a zero-day vulnerability that it said is being actively exploited in the wild in limited, targeted attacks. Tracked as CVE-2021-1048, the zero-day bug is described as a use-after-free vulnerability in the kernel that can be exploited for local privilege escalation.
Google has rolled out its monthly security patches for Android with fixes for 39 flaws, including a zero-day vulnerability that it said is being actively exploited in the wild in limited, targeted attacks. Tracked as CVE-2021-1048, the zero-day bug is described as a use-after-free vulnerability in the kernel that can be exploited for local privilege escalation.
Google on Thursday rolled out an emergency update for its Chrome web browser, including fixes for two zero-day vulnerabilities that it says are being actively exploited in the wild. The internet giant's Threat Analysis Group has been credited with discovering and reporting the two flaws on September 15, 2021, and October 26, 2021, respectively.