CISA Alert: Top Routinely Exploited Vulnerabilities

On July 28, 2021, the U.S. Cybersecurity and Infrastructure Security Agency CISA released a cybersecurity advisory detailing the top 30 publicly known vulnerabilities that have been routinely exploited by cyber threat actors in 2020 and 2021. Organizations are advised to prioritize and apply...

Exploit for Integer Overflow or Wraparound in Linux Linux_Kernel

CVE-2021-33909 Exploit code for CVE-2021-33909,Just a dump of...

Debian: Security Advisory (DSA-4941-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Debian: Security Advisory (DLA-2715-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DLA 2714-1] linux-4.19 security update

Debian LTS Advisory DLA-2714-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings July 20, 2021 https://wiki.debian.org/LTS Package : linux-4.19 Version : 4.19.194-3deb9u1 CVE ID : CVE-2020-36311 CVE-2021-3609 CVE-2021-33909 CVE-2021-34693 Debian Bug : 990072 Several...

[SECURITY] [DLA 2713-1] linux security update

Debian LTS Advisory DLA-2713-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings July 20, 2021 https://wiki.debian.org/LTS Package : linux Version : 4.9.272-2 CVE ID : CVE-2021-3609 CVE-2021-21781 CVE-2021-33909 CVE-2021-34693 Debian Bug : 990072 Brief introduction...

[SECURITY] [DLA 2715-1] systemd security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-2715-1 [email protected] https://www.debian.org/lts/security/ Salvatore Bonaccorso July 20, 2021 https://wiki.debian.org/LTS -...

CVE-2021-33910: Denial of Service (Stack Exhaustion) in systemd (PID 1)

The Qualys Research Team has discovered a stack exhaustion denial-of-service vulnerability in systemd, a near-ubiquitous utility available on major Linux operating systems. Any unprivileged user can exploit this vulnerability to crash systemd and hence the entire operating system a kernel panic...

Sequoia: A Local Privilege Escalation Vulnerability in Linux’s Filesystem Layer (CVE-2021-33909)

The Qualys Research Team has discovered a sizet-to-int type conversion vulnerability in the Linux Kernel’s filesystem layer affecting most Linux operating systems. Any unprivileged user can gain root privileges on a vulnerable host by exploiting this vulnerability in a default configuration. Abou...

[SECURITY] [DSA 4942-1] systemd security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4942-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 20, 2021 https://www.debian.org/security/faq -...

[SECURITY] [DSA 4942-1] systemd security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4942-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 20, 2021 https://www.debian.org/security/faq -...

Microsoft and Adobe Patch Tuesday (July 2021) – Microsoft 117 Vulnerabilities with 13 Critical, Adobe 26 Vulnerabilities

Microsoft Patch Tuesday – July 2021 Microsoft patched 117 vulnerabilities in their July 2021 Patch Tuesday release, and 13 of them are rated as critical severity. Critical Microsoft Vulnerabilities Patched CVE-2021-34448 – Scripting Engine Memory Corruption Vulnerability This is being actively...

Kaseya REvil Ransomware Attack (CVE-2021-30116) – Automatically Discover and Prioritize Using Qualys VMDR®

On July 2, 2021, Kaseya announced its software had been compromised and was being used to attack the IT infrastructure of its customers. The REvil ransomware attack leveraged multiple zero-day vulnerabilities in Kaseya’s VSA Virtual System/Server Administrator product that helps Kaseya customers ...

Microsoft Windows Print Spooler RCE Vulnerability (PrintNightmare-CVE-2021-34527) – Automatically Discover, Prioritize and Remediate Using Qualys VMDR®

Update July 9, 2021: Added "Registry Settings Check After Installing the Updates" section below. Original Post: On June 29, 2021, a zero-day exploit was observed on Microsoft Windows systems which allows authenticated users with a regular Domain User account to gain full SYSTEM-level privileges. ...

Exploit for Off-by-one Error in Sudo_Project Sudo

CVE-2021-3156 Root shell PoC for CVE-2021-3156 no brutef...

Ukrainian Police Nab Six Tied to CLOP Ransomware

Authorities in Ukraine this week charged six people alleged to be part of the CLOP ransomware group, a cybercriminal gang said to have extorted more than half a billion dollars from victims. Some of CLOPs victims this year alone include Stanford University Medical School, the University of...

Reinforce Defense with File Reputation and Trusted Source Intelligence in Qualys FIM

Monitoring change events in the file system is both a crucial aspect of security and a critical compliance requirement. A file integrity monitoring tool functions as an essential layer of defense to identify illicit activities across critical system files and registries, diagnose changes, and sen...

Reinventing Cybersecurity Asset Management

Because security teams need their own asset inventory solution In conversations with our customers, it’s very clear that organizations need to establish a comprehensive view of their IT asset infrastructure because you can’t secure what you don’t know or can’t see. But that comprehensive view nee...

Microsoft & Adobe Patch Tuesday (May 2021) – Qualys covers 85 Vulnerabilities, 26 Critical

Microsoft Patch Tuesday – May 2021 Microsoft patched 55 CVEs in their May 2021 Patch Tuesday release, of which 4 are rated as critical severity. Three 0-day vulnerability patches were included in the release. As of this publication date, none have been exploited. Qualys released 12 QIDs on the sa...

Google Android May 2021 Security Patch Vulnerabilities: Discover and Take Remote Response Action Using VMDR for Mobile Devices

The recently released Android Security Bulletin for May 2021 addresses 40 vulnerabilities, out of which 4 are rated as critical vulnerabilities. The vulnerabilities affect open-source components such as the Android Framework, Android Media Framework, Android System, and Android’s Linux Kernel for...