NotLockBit: A Deep Dive Into the New Ransomware Threat | Qualys Security Blog
NotLockBit is a new and emerging ransomware family that actively mimics the behavior and tactics of the well-known LockBit ransomware.
Qualys TRU Uncovers Five Local Privilege Escalation Vulnerabilities in needrestart | Qualys Security Blog
The Qualys Threat Research Unit (TRU) has identified five Local Privilege Escalation (LPE) vulnerabilities within the needrestart component, which is installed by default on Ubuntu Server. These vulnerabilities can be exploited by any unprivileged user to gain full root access without requiring user interaction. The identified flaws have been assigned the CVE identifiers CVE-2024-48990, CVE-2024-48991, CVE-2024-48992, CVE-2024-10224, and CVE-2024-11003, highlighting the need for immediate remediation to protect system integrity. Our TRU team has successfully developed functional exploits for these vulnerabilities. While we will not disclose our exploits, please be aware that these vulnerabilities are easily exploitable, and other researchers may release working exploits shortly following this coordinated disclosure. These vulnerabilities have been present since the introduction of interpreter support in needrestart version 0.8, released in April 2014.
regreSSHion: Remote Unauthenticated Code Execution Vulnerability in OpenSSH server
The Qualys Threat Research Unit (TRU) has discovered a Remote Unauthenticated Code Execution (RCE) vulnerability in OpenSSH’s server (sshd) in glibc-based Linux…
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
Qualys TRU Discovers Important Vulnerabilities in GNU C Library’s syslog()
The Qualys Threat Research Unit (TRU) has recently unearthed four significant vulnerabilities in the GNU C Library, a cornerstone for countless applications in the Linux environment. Before diving into the specific details of the vulnerabilities discovered by the Qualys Threat Research Unit in the GNU C Library, it’s crucial to understand these findings’ broader impact and importance. The GNU C Library, or glibc, is an essential component of virtually every Linux-based system, serving as the core interface between applications and the Linux kernel. The recent discovery of these vulnerabilities is not just a technical concern but a matter of widespread security implications.
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
CVE-2023-4911: Looney Tunables - Local Privilege Escalation in the glibc’s ld.so
The Qualys Threat Research Unit (TRU) has discovered a buffer overflow vulnerability in GNU C Library's dynamic loader's processing of the GLIBC_TUNABLES…
CVE-2023-38408: Remote Code Execution in OpenSSH’s forwarded ssh-agent
The Qualys Threat Research Unit (TRU) has discovered a remote code execution vulnerability in OpenSSH's forwarded ssh-agent. This vulnerability allows a remote…
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
Oh Snap! More Lemmings (Local Privilege Escalation in snap-confine)
We recently audited snap-confine (a SUID-root program that is installed by default on Ubuntu) and discovered two vulnerabilities (two Local Privilege Escalations, from any user to root): CVE-2021-44730 and CVE-2021-44731.
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
Oh Snap! More Lemmings (Local Privilege Escalation in snap-confine)
We recently audited snap-confine (a SUID-root program that is installed by default on Ubuntu) and discovered two vulnerabilities (two Local Privilege Escalations, from any user to root): CVE-2021-44730 and CVE-2021-44731.
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
Oh Snap! More Lemmings (Local Privilege Escalation in snap-confine)
We recently audited snap-confine (a SUID-root program that is installed by default on Ubuntu) and discovered two vulnerabilities (two Local Privilege Escalations, from any user to root): CVE-2021-44730 and CVE-2021-44731.
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…