On May 3, 2021, Ivanti issued a security update addressing highly critical security holes in its Pulse Connect Secure SSL VPN appliance. The flaws have been reportedly used by APT actors to target government agencies, critical infrastructure objects, and private firms across the U.S. Pulse Connect Secure Vulnerabilities According to the CISA security alert from […]
On April 20, 2021, US-CERT issued an alert warning about an ongoing malicious campaign abusing vulnerable Pulse Connect Secure products to attack organizations across the US. The campaign broke forth in June 2020 and involved multiple security incidents affecting government agencies, critical infrastructure assets, and private sector organizations. Threat actors rely on a set of […]
Despite being patched for three years already, hackers reportedly rely on an old remote code execution vulnerability in Microsoft Office (CVE-2017-11882) to infect victims with malware. According to the threat analysis report from HP Bromium, the flaw accounts for nearly three-quarters of all exploits leveraged in Q4 2020. CVE-2017-11882 Description CVE-2017-11882 is a memory corruption […]
HAFNIUM APT Exploits Microsoft Exchange Zero-Days to Steal Data and Install Malware In January 2021, security researchers from Violexity revealed a long-term malicious operation launched by China-affiliated HAFNIUM APT against a number of unnamed organizations. Threat actors leveraged a set of previously undisclosed zero-day vulnerabilities in Microsoft Exchange to access sensitive corporate information and perform […]
On January 27, 2021, IBM released an official patch for a serious remote code execution vulnerability affecting its QRadar SIEM. CVE-2020-4888 Description The security hole occurs because the Java deserialization function fails to deserialize a user-supplied input securely. As a result, remote low-privileged hackers can execute arbitrary commands on the affected system by sending a […]
On February 23, 2021, VMware addressed a critical unauthorized remote code execution (RCE) bug (CVE-2021-21972) in its default vCenter Server plugin. Right after the announcement and the advisory release, threat actors started mass scans for publicly exposed instances. To date, researchers have detected 6700 VMware vCenter servers exposed to the attacks. As far as public […]
In February 2021, Microsoft patched a privilege escalation bug in Microsoft Defender Antivirus (formerly Windows Defender) that might provide threat actors with the ability to gain admin rights on the vulnerable host and disable pre-installed security products. SentinelOne experts, who revealed the issue, report that the flaw was introduced back in 2009 and stayed undisclosed […]
A recently-disclosed security issue in Sudo provides unauthenticated hackers with the ability to escalate their privileges to root on any Linux device. The flaw was imported back in 2011 and remained undetected for nearly a decade. Linux Sudo Vulnerability Description Sudo is a standard service for system administrators, which is ubiquitously applied across the majority […]
The information security analyst Jonas L has discovered an alarming bug in Windows 10 that might corrupt any hard drive (HD) relying on the NTFS formatting. A zero-day flaw remains unpatched despite the researcher has pointed up to it since autumn 2020. NTFS Vulnerability Analysis The NTFS zero-day vulnerability exists in Windows 10 build 1803, […]
Threat actors exploit a recently discovered Zyxel secret backdoor in the wild. It’s high time to patch since adversaries are instantly searching for vulnerable installations to gain momentum before updates are installed. CVE-2020-29583 Overview The bug occurs since a number of Zyxel products incorporate an undocumented root account leveraging hardcoded login details accessible in the […]