An integer overflow vulnerability exists in the Libarchive library included in Microsoft Windows. The vulnerability is due to insufficient bounds checks on the block length of a RARVM filter used for Intel E8 preprocessing, included in the compressed data of a RAR archive.
A remote attacker could exploit this vulnerability by enticing a target user into extracting a crafted RAR archive. Successful exploitation could result in arbitrary code execution in the context of the application using the vulnerable library.
Read more…
Source: Zero Day Initiative
Related:
- Critical Security Hole Can Knock Smart Meters Offline
March 12, 2021
Critical security vulnerabilities in Schneider Electric smart meters could allow an attacker a path to remote code execution (RCE), or to reboot the meter causing a denial-of-service (DoS) condition on the device. Schneider Electric’s PowerLogic ION/PM smart meter product line, like other smart meters, is used by consumers in their homes, but also by utility companies ...
- New ZHtrap botnet malware deploys honeypots to find more targets
March 12, 2021
A new botnet is hunting down and transforming infected routers, DVRs, and UPnP network devices into honeypots that help it find other targets to infect. The malware, dubbed ZHtrap by the 360 Netlab security researchers who spotted it, is loosely based on Mirai’s source code, and it comes with support for x86, ARM, MIPS, and other ...
- Security and Privacy of COVID-19 Contact-Tracing Apps
March 12, 2021
Symantec analyzed the top 25 COVID-19 national contact-tracing apps to see which follow security and privacy best practices. Unfortunately, in this new COVID-19 era it’s not just our computers we have to protect from infection, but also ourselves and our loved ones. Along with social distancing, wearing a mask, and washing our hands, technology is also ...
- Hafnium’s China Chopper: a ‘slick’ and tiny web shell for creating server backdoors
March 11, 2021
Researchers have provided insight into China Chopper, a web shell used by the state-sponsored Hafnium hacking group. Hafnium is a group of cyberattackers originating from China. The collective recently came into the spotlight due to Microsoft linking them to recent attacks exploiting four zero-day vulnerabilities — CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065 — in Microsoft Exchange Server. Microsoft ...
- Microsoft Exchange Servers Face APT Attack Tsunami
March 11, 2021
Recently patched Microsoft Exchange vulnerabilities are under fire from at least 10 different advanced persistent threat (APT) groups, all bent on compromising email servers around the world. Overall exploitation activity is snowballing, according to researchers. Microsoft said in early March that it had spotted multiple zero-day exploits in the wild being used to attack on-premises versions ...
- F5 issues BIG-IP patches to tackle unauthenticated remote code execution, critical flaws
March 11, 2021
F5 Networks has pushed out patches to tackle four critical vulnerabilities in BIG-IP, one of which can be exploited for unauthenticated remote code execution (RCE) attacks. The enterprise networking provider’s BIG-IP applications are enterprise-grade, modular software suites designed for data and app delivery, load balancing, traffic management, and other business functions. F5 says that 48 out of ...