CISA Issues Apache Log4j Vulnerability Guidance

CISA and its partners, through the Joint Cyber Defense Collaborative, are responding to active, widespread exploitation of a critical remote code execution (RCE) vulnerability (CVE-2021-44228) in Apache’s Log4j software library, versions 2.0-beta9 to 2.14.1, known as “Log4Shell” and “Logjam.” Log4j Read More …

Log4j flaw: Nearly half of corporate networks have been targeted by attackers trying to use this vulnerability

The number of attacks aiming to take advantage of the recently disclosed security flaw in the Log4j2 Java logging library continues to grow. The vulnerability (CVE-2021-44228) was publicly disclosed on December 9 and enables remote code execution and access to Read More …

Actively Exploited Microsoft Zero-Day Allows App Spoofing, Malware Delivery

Microsoft has addressed a zero-day vulnerability that was exploited in the wild to deliver Emotet, Trickbot and more in the form of fake applications. The patch came as part of the computing giant’s December Patch Tuesday update, which included a Read More …

Hundreds of thousands of MikroTik devices still vulnerable to botnets

Approximately 300,000 MikroTik routers are vulnerable to critical vulnerabilities that malware botnets can exploit for cryptomining and DDoS attacks. MikroTik is a Latvian manufacturer of routers and wireless ISPs who has sold over 2,000,000 devices globally. In August, the Mēris Read More …

Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products

On September 16, 2021, the Apache Software Foundation disclosed five vulnerabilities affecting the Apache HTTP Server (httpd) 2.4.48 and earlier releases. For a description of these vulnerabilities, see the Apache HTTP Server 2.4.49 section of the Apache HTTP Server 2.4 Read More …

SonicWall ‘strongly urges’ customers to patch critical SMA 100 bugs

SonicWall ‘strongly urges’ organizations using SMA 100 series appliances to immediately patch them against multiple security flaws rated with CVSS scores ranging from medium to critical. The bugs (reported by Rapid7’s Jake Baines and NCC Group’s Richard Warren) impact SMA Read More …

Two Birds With One Stone: An Introduction To V8 And JIT Exploitation

In this special blog series, ZDI Vulnerability Researcher Hossein Lotfi looks at the exploitation of V8 – Google’s open-source high-performance JavaScript and WebAssembly engine – through the lens of a bug used during Pwn2Own Vancouver 2021. The contest submission from Read More …