CVE-2021-3156

CVE-2021-3156 CVE-2021-3156용 루트 셸 PoC 브루트포스 없음 교육 목적 등으로 제공됩니다. Ubuntu 20.04의 sudo 1.8.31에서 테스트됨 모든 연구 크레딧: Qualys Research Team 자세한 내용은 해당 블로그에서 확인하세요. 다음 명령으로 sudo 버전이 취약한지 확인할 수 있습니다: $ sudoedit -s Y. 비밀번호를 묻는다면 취약할 가능성이 높고, 사용법 정보를 출력한다면 취약하지 않은 것입니다. 테스트 목적으로 Ubuntu 20.04에서 취약한 버전으로 다운그레이드하려...

CVE-2021-4034

정보 Exploit Title: Local Privilege Escalation in polkit's pkexec CVE-2021-4034 Date: 01/25/2022 Exploit Author: Qualys Research Team Tested on: ubuntu 20.04.1 LTS CVE ID: CVE-2021-27928 공격 방법 테스트 환경： 1단계：exp 빌드출처: https://github.com/berdav/CVE-2021-4034 make 2단계：익스플로잇 실행 및 루트 셸 획득 분석 세부 정보...

Debian dsa-6163 : affs-modules-6.1.0-43-4kc-malta-di - security update

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6163 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6163-1 [email protected] https://www.debian.org/securit...

[SECURITY] [DSA 5611-1] glibc security update

------------------------------------------------------------------------- Debian Security Advisory DSA-5611-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso January 30, 2024 https://www.debian.org/security/faq -...

[SECURITY] [DSA 5514-1] glibc security update

------------------------------------------------------------------------- Debian Security Advisory DSA-5514-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso October 03, 2023 https://www.debian.org/security/faq -...

USN-5753-1: snapd vulnerability

The Qualys Research Team discovered that a race condition existed in the snapd snap-confine binary when preparing the private /tmp mount for a snap. A local attacker could possibly use this issue to escalate privileges and execute arbitrary code...

Exploit for Off-by-one Error in Sudo_Project Sudo

CVE-2021-3156: Heap-Based Buffer Overflow in Sudo Baron Samed...

Defending Against Scheduled Task Attacks in Windows Environments

Scheduling tasks is one of the most popular attack techniques used by threat actors to establish persistence on a victim’s machine. The Qualys Research Team investigated different ways that attackers could use to conceal scheduled tasks. In this blog, we describe three new techniques to hide and...

Exploit for Off-by-one Error in Sudo_Project Sudo

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

Infographic: Log4Shell Vulnerability Impact by the Numbers

The full scope of risk presented by the Log4Shell vulnerability is something unprecedented, spanning every type of organization across every industry. Hard to find but easy to exploit, Log4Shell immediately places hundreds of millions of Java-based applications, databases, and devices at risk...

USN-5292-3: snapd vulnerabilities

USN-5292-1 fixed several vulnerabilities in snapd. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: James Troup discovered that snap did not properly manage the permissions for the snap directories. A local attacker could possibly...

Oh Snap! More Lemmings: Local Privilege Escalation Vulnerability Discovered in snap-confine (CVE-2021-44731)

The Qualys Research Team has discovered multiple vulnerabilities in the snap-confine function on Linux operating systems, the most important of which can be exploited to escalate privilege to gain root privileges. Qualys recommends security teams apply patches for these vulnerabilities as soon as...

Catching the RAT called Agent Tesla

For the last few years, the Qualys Research Team has been observing an infamous "Malware-as-a-service" RAT Remote Access Trojan called Agent Tesla. It first appeared in 2014, and since then many variants have been deployed. This malware uses multiple techniques for evading detection as well as...

Exploit for Out-of-bounds Write in Polkit_Project Polkit

PwnKit Vulnerability - Local Privilege Escalation - Title:...

Exploit for Out-of-bounds Write in Polkit_Project Polkit

CVE-2021-4034-Rust Linux LPE using polkit-1 written in Rust...

Exploit for Out-of-bounds Write in Polkit_Project Polkit

Information Exploit Title: Local Privilege Escalation i...

The Chaos Ransomware Can Be Ravaging

The Qualys Research Team has observed a new version of Chaos ransomware in development. This blog reviews the malware’s updated functionality as well as its ongoing evolution. A ransomware builder called Chaos is still actively under development. The fourth version has recently been observed bein...

Assess Your Risk From Ransomware Attacks, Powered by Qualys Research

Ransomware attacks are among the most significant cyber threats facing businesses today. Recent warnings about Conti ransomware, issued by a joint cybersecurity advisory from the U.S. Cybersecurity and Infrastructure Security Agency CISA, FBI and National Security Agency, are a strong signal that...

Qualys Research Wins Two 2021 Pwnie Awards

The Qualys Research team won two Pwnie Awards today at Black Hat USA 2021 for discovering and responsibly disclosing these new vulnerabilities: Best Privilege Escalation Bug and Most Under-Hyped Research. The Qualys Research team received these awards: Best Privilege Escalation Bug Heap-based...

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...