x86/AMD: missing IOMMU TLB flushing

ISSUE DESCRIPTION The caching invalidation guidelines from the AMD-Vi specification 48882—Rev 3.07-PUB—Oct 2022 is incorrect on some hardware, as devices will malfunction see stale DMA mappings if some fields of the DTE are updated but the IOMMU TLB is not flushed. Such stale DMA mappings can poi...

glibc ld.so Local Privilege Escalation Vulnerability

Dubbed Looney Tunables, Qualys discovered a buffer overflow vulnerability in the glibc dynamic loader's processing of the GLIBCTUNABLES environment variable. This vulnerability was introduced in April 2021 glibc 2.34 by commit 2ed18c. Looney Tunables: Local Privilege Escalation in the glibc's ld....

EDRaser - Tool For Remotely Deleting Access Logs, Windows Event Logs, Databases, And Other Files

EDRaser is a powerful tool for remotely deleting access logs, Windows event logs, databases, and other files on remote machines. It offers two modes of operation: automated and manual. Automated Mode In automated mode, EDRaser scans the C class of a given address space of IPs for vulnerable syste...

TargetCompany Ransomware’s FUD Obfuscation Maneuvers

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The TargetCompany ransomware employs a combination of its proprietary variant and the BatCloak obfuscator engine, acclaimed for its full undetectability FUD capabilities. Accompanying this fusion is the...

TargetCompany Ransomware Abuses FUD Obfuscator Packers

In this entry, we detail our analysis of how the TargetCompany ransomware abused an iteration of fully undetectable FUD obfuscator engine BatCloak to infect vulnerable systems...

Crysis Threat Actors Unleash Venus Ransomware via RDP

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The threat actors behind the Crysis ransomware are currently utilizing the Venus ransomware as a component of their attack strategy, with a primary focus on targeting vulnerable systems through active...

MOVEit Transfer Under Attack: Zero-Day Vulnerability Actively Being Exploited

A critical flaw in Progress Software's in MOVEit Transfer managed file transfer application has come under widespread exploitation in the wild to take over vulnerable systems. The shortcoming, which is assigned the CVE identifier CVE-2023-34362, relates to a severe SQL injection vulnerability tha...

x86: speculative vulnerability in 32bit SYSCALL path

ISSUE DESCRIPTION Due to an oversight in the very original Spectre/Meltdown security work XSA-254, one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks. IMPACT An...

Exploit for Untrusted Pointer Dereference in Microsoft

CVE-2023-21768 Local Privilege Escalation POC authors: chomp...

SUSE CVE-2011-0419

Stack consumption vulnerability in the fnmatch implementation in aprfnmatch.c in the Apache Portable Runtime APR library before 1.4.3 and the Apache HTTP Server before 2.2.18, and in fnmatch.c in libc in NetBSD 5.1, OpenBSD 4.8, FreeBSD, Apple Mac OS X 10.6, Oracle Solaris 10, and Android, allows...

Guests can cause Xenstore crash via soft reset

ISSUE DESCRIPTION When a guest issues a "Soft Reset" e.g. for performing a kexec the libxl based Xen toolstack will normally perform a XSRELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XSRELEASE will have the same impact. IMPACT A...

PT-2023-12711 · Western Digital · Western Digital Ufs Host Boot Rom

Name of the Vulnerable Software and Affected Versions: Western Digital UFS Host Boot ROM affected versions not specified Description: A weakness has been identified in the UFS standard that could result in a security issue. This issue may exist in systems where the Host boot ROM code implements t...

WordPress Security Alert: New Linux Malware Exploiting Over Two Dozen CMS Flaws

WordPress sites are being targeted by a previously unknown strain of Linux malware that exploits flaws in over two dozen plugins and themes to compromise vulnerable systems. "If sites use outdated versions of such add-ons, lacking crucial fixes, the targeted web pages are injected with malicious...

openssl: the c_rehash script allows command injection

A flaw was found in OpenSSL. The issue in CVE-2022-1292 did not find other places in the crehash script where it possibly passed the file names of certificates being hashed to a command executed through the shell. Some operating systems distribute this script in a manner where it is automatically...

Xenstore: Cooperating guests can create arbitrary numbers of nodes

ISSUE DESCRIPTION Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by Dom0. This will allow two malicious guests working together to create an arbitrary number of Xenstore nodes. This is possible by domain A letting domain B write into domain A's...

Exploit for CVE-2022-21907

CVE-2022-21907 Golang Application by 1vere$k CVE-2022-21907 -...

race in VT-d domain ID cleanup

ISSUE DESCRIPTION Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping...

Insufficient cleanup of passed-through device IRQs

ISSUE DESCRIPTION The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the...

vulhub

This is an open-source collection of vulnerable systems and applications for educational purposes. The repository is maintained by phith0n and is available on GitHub. It contains a variety of vulnerable systems and applications, including web applications, databases, and operating systems. The...

vulhub

This repository is an open-source collection of vulnerable systems and applications for educational purposes, specifically for learning and practicing penetration testing and vulnerability assessment. It is maintained by phith0n and hosted on GitHub. The repository contains various vulnerable...