Security Advisory: Mitigating the Risk of Microsoft Exchange Zero-Day ProxyLogon Vulnerabilities

Microsoft recently released several security updates for Microsoft Exchange Server to address vulnerabilities that sophisticated nation-state actors are exploiting to exfiltrate critical data from a variety of organizations. Reports suggest attackers have been targeting these vulnerabilities sinc...

IT Security firm Qualys extorted by Clop gang after data breach

By Waqas Qualys has confirmed that the Clop ransomware gang is behind the cyber attack that exploited Accellion exploit. This is a post from HackRead.com Read the original post: IT Security firm Qualys extorted by Clop gang after data breach...

Extortion Gang Breaches Cybersecurity Firm Qualys Using Accellion Exploit

Enterprise cloud security firm Qualys has become the latest victim to join a long list of entities to have suffered a data breach after zero-day vulnerabilities in its Accellion File Transfer Appliance FTA server were exploited to steal sensitive business documents. As proof of access to the data...

Extortion Gang Breaches Cybersecurity Firm Qualys Using Accellion Exploit

Enterprise cloud security firm Qualys has become the latest victim to join a long list of entities to have suffered a data breach after zero-day vulnerabilities in its Accellion File Transfer Appliance FTA server were exploited to steal sensitive business documents. As proof of access to the data...

Microsoft Exchange Server Zero-Days (ProxyLogon) – Automatically Discover, Prioritize and Remediate Using Qualys VMDR

Update March 10, 2021: A new section describes how to respond with mitigation controls if patches cannot be applied, as recommended by Microsoft. This section details the Qualys Policy Compliance control ids for each vulnerability. Update March 8, 2021: Qualys has released an additional QID: 5010...

Qualys API Best Practices: KnowledgeBase API

This API Best Practices Series shows how to optimize your API usage starting with the KnowledgeBase API. The accompanying video presents these API best practices along with live code examples, so that you can effectively integrate the KnowledgeBase with other data and use it in process automation...

Expand Your Vulnerability & Patch Management Program to Mobile Devices with Qualys VMDR

As mobile devices have become ubiquitous in almost every business process, whether in bank branches, manufacturing sites or retail stores, they are now hosting business applications and data that is subject to regulatory compliance and security. With access to critical corporate resources inside...

Exploit for Off-by-one Error in Sudo_Project Sudo

CVE-2021-3156 PoC Introduction This is an exploit for the...

Sudo set_cmd() is vulnerable to heap-based buffer overflow

Overview A heap-based overflow has been discovered in the setcmd function in sudo, which may allow a local attacker to execute commands with elevated administrator privileges. Description From the Sudo Main Page: Sudo su "do" allows a system administrator to delegate authority to give certain use...

Exploit for Off-by-one Error in Sudo_Project Sudo

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

Sudo Heap-Based Buffer Overflow Vulnerability — CVE-2021-3156

Sudo has released an advisory addressing a heap-based buffer overflow vulnerability—CVE-2021-3156—affecting sudo legacy versions 1.8.2 through 1.8.31p2 and stable versions 1.9.0 through 1.9.5p1. Sudo is a utility included in many Unix- and Linux-based operating systems that allows a user to run...

Unpacking the CVEs in the FireEye Breach – Start Here First

In a blog post on Dec. 22, 2020, Qualys revealed it has identified 7.5 million instances of vulnerability to the stolen FireEye Red Team assessment tools across an anonymized set of its 15,700-member customer base. Of the 7.5 million instances of vulnerability, 99.84% were caused by only 8 CVEs,...

Sudo 1.9.5p1 - (Baron Samedit) Heap-Based Buffer Overflow Privilege Escalation Exploit (1)

Exploit Title: Sudo 1.9.5p1 - 'Baron Samedit ' Heap-Based Buffer Overflow Privilege Escalation 1 Exploit Author: West Shepherd Version: Sudo legacy versions from 1.8.2 to 1.8.31p2, stable versions from 1.9.0 to 1.9.5p1. Tested on: Ubuntu 20.04.1 LTS Sudo version 1.8.31 CVE : CVE-2021-3156 Credit...

Sudo 1.9.5p1 - (Baron Samedit) Heap-Based Buffer Overflow Privilege Escalation Exploit (2)

Sudo versions prior to 1.9.5p2 suffer from buffer overflow and privilege escalation vulnerabilities. Exploit Title: Sudo 1.9.5p1 - 'Baron Samedit ' Heap-Based Buffer Overflow Privilege Escalation 2 Authors and Contributors: cts, help from r4j, debug by nu11secur1ty Vendor: https://www.sudo.ws/...

Exploit for Off-by-one Error in Sudo_Project Sudo

CVE-2021-3156 https://www.qualys.com/2021/01/26/cve-2021...

CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit)

Update Feb 3, 2021: It has been reported that macOS, AIX, and Solaris are also vulnerable to CVE-2021-3156, and that others may also still be vulnerable. Qualys has not independently verified the exploit. Original Post: The Qualys Research Team has discovered a heap overflow vulnerability in sudo...

Dive Deep into VMDR

Qualys devoted the second day of the Qualys Security Conference entirely to vulnerability management, detection and response VMDR, a critical area for the security and compliance of hybrid cloud IT environments. Mehul Revankar, VP of Product Management and Engineering for VMDR at Qualys, set the...

CVE-2021-3156 "Baron Samedit"

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via “sudoedit -s” and a command-line argument that ends with a single backslash character. Recent assessments: cdelafuente-r7 at January 27, 2021 3:40pm UTC...

The Evolution of the Qualys Cloud Platform

The global pandemic has upended everything, and in the cyber security world in particular it has highlighted the need for organizations to have a cloud-based security and compliance platform, Qualys President and Chief Product Officer Sumedh Thakar said during his keynote Monday at Qualys Securit...

January 2021 Patch Tuesday – 83 Vulnerabilities, 10 Critical, One Zero Day, Adobe

This month’s Microsoft Patch Tuesday addresses 83 vulnerabilities. The 10 Critical vulnerabilities cover Windows codecs, Office, HEVC video extensions, RPC runtime, and several other workstation vulnerabilities. Adobe released patches today for Photoshop, Campaign Classic, InCopy, Illustrator,...