polkit -- Local Privilege Escalation

Qualys reports: We discovered a Local Privilege Escalation from any user to root in polkit's pkexec, a SUID-root program that is installed by default on every major Linux distribution...

PT-2022-11085 · Unknown +1 · Gnome Shell +1

Name of the Vulnerable Software and Affected Versions: Linux distributions affected versions not specified Description: The issue concerns Linux distributions that use CAP SYS NICE for gnome-shell, potentially exposing them to a privilege escalation problem. An attacker with low privilege...

Security fix for the ALT Linux 10 package samba version 4.14.10-alt3

Dec. 13, 2021 Evgeny Sinelnikov 4.14.10-alt3 - Update for the latest fixes release of Samba 4.14 + CVE-2020-25727 idmapnss, krb5 and s3-auth regressions + CVE-2021-3670 ldapserver, dsdb/anr and ldb libldb-2.3.2-alt2 regressions + smbd: s3-dsgetdcname: handle numips == 0 + dsdb: Use...

OpenSearch -- Log4Shell

OpenSearch reports: A recently published security issue CVE-2021-44228 affects several versions of the broadly-used Apache Log4j library. Some software in the OpenSearch project includes versions of Log4j referenced in this CVE. While, at time of writing, the team has not found a reproduceable...

Users Can DOS Vesting Distributions

Handle leastwood Vulnerability details Impact The Vesting.vest function is called by airdrop/investor distributions to lock 70% of their token allocations for a period of one year. Vestings are defined on a linear schedule and can be claimed as often as the user likes. However, the claimableAmoun...

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...

This Week in Security News June 18, 2021

Bash ransomware targets Linux Distributions and Trend Micro touts zero trust risk insights...

Bash Ransomware DarkRadiation Targets Red Hat- and Debian-based Linux Distributions

We investigate how certain hacking tools are used to move laterally on victims’ networks to deploy ransomware. These tools contain reconnaissance/spreader scripts, exploits for Red Hat and CentOS, binary injectors, and more. In this blog, we focus on analyzing the worm and ransomware script...

Raft of Exim Security Holes Allow Linux Mail Server Takeovers

A veritable cornucopia of security vulnerabilities in the Exim mail server have been uncovered, some of which could be chained together for unauthenticated remote code execution RCE, gaining root privileges and worm-style lateral movement, according to researchers. The Qualys Research Team has...

CVE-2021-3418

If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction...

Exploit for Off-by-one Error in Sudo_Project Sudo

CVE-2021-3156 Sudo Baron Samedit This repository is CVE-202...

XSSTRON - Electron JS Browser To Find XSS Vulnerabilities Automatically

Powerful Chromium Browser to find XSS Vulnerabilites automatically while browsing web, it can detect many case scenarios with support for POST requests too Installation Become root sudo su Install Node.js and npm https://www.npmjs.com/get-npm or sudo apt install npm Download this repo files or gi...

CVE-2019-25017

An issue was discovered in rcp in MIT krb5-appl through 1.0.3. Due to the rcp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the rcp client only performs cursory validation of the object name returned only directory traversa...

CVE-2019-25018

In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying the permissions of the target directory on the client side. NOTE: MIT...

Design/Logic Flaw

In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying the permissions of the target directory on the client side. NOTE: MIT...

CVE-2019-25017

An issue was discovered in rcp in MIT krb5-appl through 1.0.3. Due to the rcp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the rcp client only performs cursory validation of the object name returned only directory traversa...

CVE-2019-25018

In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying the permissions of the target directory on the client side. NOTE: MIT...

Sudo Heap-Based Buffer Overflow

Qualys Security Advisory Baron Samedit: Heap-based buffer overflow in Sudo CVE-2021-3156 ======================================================================== Contents ======================================================================== Summary Analysis Exploitation Acknowledgments Timelin...

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...

DNSpooq bugs haunt dnsmasq

The research team at JSOF found seven vulnerabilities in dnsmasq and have dubbed them DNSpooq, collectively. Now, some of you may shrug and move on, probably because you havent heard of dnsmasq before. Well, before you go, you should know that dnsmasq is used in a wide variety of phones, routers,...