Pierluigi Paganini
November 04, 2023
Kinsing threat actors are exploiting the recently disclosed Linux privilege escalation flaw Looney Tunables to target cloud environments. Researchers are cloud security firm Aqua have observed threat actors exploiting the recently disclosed Linux privilege escalation flaw Looney Tunables in attacks against cloud environments. The vulnerability Looney Tunables (CVE-2023-4911 (CVSS score 7.8)) is a buffer overflow issue that […]
Pierluigi Paganini
October 10, 2023
A vulnerability in the libcue library impacting GNOME Linux systems can be exploited to achieve remote code execution (RCE) on affected hosts. A threat actor can trigger a vulnerability, tracked as CVE-2023-43641 (CVSS score: 8.8), in the libcue library impacting GNOME Linux systems to achieve remote code execution (RCE) on affected hosts. libcue provides an […]
Pierluigi Paganini
October 06, 2023
Researchers published PoC exploits for CVE-2023-4911 vulnerability (aka Looney Tunables) impacting most popular Linux distributions. The vulnerability CVE-2023-4911 (CVSS score 7.8) is a buffer overflow issue that resides in the GNU C Library’s dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. An attacker can trigger the vulnerability to execute code with elevated privileges. “A […]
Pierluigi Paganini
September 19, 2023
China-linked threat actor Earth Lusca used a new Linux malware dubbed SprySOCKS in a recent cyber espionage campaign. Researchers from Trend Micro, while monitoring the activity of the China-linked threat actor Earth Lusca, discovered an encrypted file hosted on a server under the control of the group. Additional analysis led to the discovery of a […]
Pierluigi Paganini
August 15, 2023
Monti Ransomware operators returned, after a two-month pause, with a new Linux variant of their encryptor. The Monti ransomware operators returned, after a two-month break, with a new Linux version of the encryptor. The variant was employed in attacks aimed at organizations in government and legal sectors. The Monti group has been active since June 2022, […]
Pierluigi Paganini
July 29, 2023
A Linux variant of the Abyss Locker designed to target VMware ESXi servers appeared in the threat landscape, experts warn. The operators behind the Abyss Locker developed a Linux variant that targets VMware ESXi servers expanding their potential targets. VMware ESXi servers are privileged targets of ransomware groups and are often part of enterprises’ infrastructures. […]
Pierluigi Paganini
July 27, 2023
Wiz researchers discovered two Linux vulnerabilities in the Ubuntu kernel that can allow an unprivileged local user to gain elevated privileges. Wiz Research discovered two privilege escalation vulnerabilities, tracked as CVE-2023-2640 and CVE-2023-32629, in the OverlayFS module in the Linux distro Ubuntu. According to the researchers, the flaws impact 40% of the users of the […]
Pierluigi Paganini
July 06, 2023
StackRot is s new security vulnerability in the Linux kernel that could be exploited to gain elevated privileges on a target system. A security vulnerability, dubbed StackRot was found impacting Linux versions 6.1 through 6.4. The issue, tracked as CVE-2023-3269, (CVSS score: 7.8), is a privilege escalation issue that resides in the memory management subsystem. An unprivileged […]
Pierluigi Paganini
June 20, 2023
Researchers warn of an ongoing Tsunami DDoS botnet campaign targeting inadequately protected Linux SSH servers. Researchers from AhnLab Security Emergency response Center (ASEC) have uncovered an ongoing hacking campaign, aimed at poorly protected Linux SSH servers, to install the Tsunami DDoS botnet (aka Kaiten). The threat actors behind these attacks were also observed installing other […]
Pierluigi Paganini
June 03, 2023
Experts noticed that the new Linux ransomware BlackSuit has significant similarities with the Royal ransomware family. Royal ransomware is one of the most notable ransomware families of 2022, it made the headlines in early May 2023 with the attack against the IT systems in Dallas, Texas. The human-operated Royal ransomware first appeared on the threat landscape in September 2022, it has […]
