icsmaster

This repository, cnforyou/icsmaster, is an ICS/SCADA security resource collection. It contains various tools and scripts for identifying and exploiting vulnerabilities in industrial control systems. The repository includes a list of dorks search terms for identifying vulnerable systems, as well a...

Wormable BlueKeep Bug Still Threatens Legions of Windows Systems

For the past two months, security researchers have been sounding the alarm about BlueKeep, a critical remote code-execution vulnerability in Microsoft Windows that researchers said could lead to a “mega-worm” global infection. As of July 2, approximately 805,665 systems remain online that are...

Unlimited Arm Atomics Operations

ISSUE DESCRIPTION Software targeting pre-Armv8.1-A hardware, Xen included, commonly implements atomics using Load/Store exclusive instructions in a loop that will terminate once the store succeeded. As per the Armv8-A Architecture Reference Manual ARM DDI0487D.a, paragraph 2.9.5 "Load-Exclusive a...

Understanding the Wormable RDP Vulnerability CVE-2019-0708

ARCHIVED STORY RDP Stands for "Really Do Patch!" - Understanding the Wormable RDP Vulnerability CVE-2019-0708 By Eoin Carroll · May 21, 2019 During Microsoft’s May Patch Tuesday cycle, a security advisory was released for a vulnerability in the Remote Desktop Protocol RDP. What was unique in this...

New Exploits for Unsecure SAP Systems

Summary The Cybersecurity and Infrastructure Security Agency CISA is issuing this activity alert in response to recently disclosed exploits that target unsecure configurations of SAP components. 1 Technical Details A presentation at the April 2019 Operation for Community Development and Empowerme...

xorg-x11-server < 1.20.3 - modulepath Local Privilege Escalation Exploit

Exploit for openbsd platform in category local exploits !/bin/sh raptorxorgy - xorg-x11-server LPE via modulepath switch Copyright c 2018 Marco Ivaldi A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server...

Fix for XSA-240 conflicts with shadow paging

ISSUE DESCRIPTION The fix for XSA-240 introduced a new field into the control structure associated with each page of RAM. This field was added to a union, another member of which is used when Xen uses shadow paging for the guest. During migration, or with the L1TF XSA-273 mitigation for PV guests...

DarkPulsar

In March 2017, the ShadowBrokers published a chunk of stolen data that included two frameworks: DanderSpritz and FuzzBunch. DanderSpritz consists entirely of plugins to gather intelligence, use exploits and examine already controlled machines. It is written in Java and provides a graphical window...

CVE-2018-12892

An issue was discovered in Xen 4.7 through 4.10.x. libxl fails to pass the readonly flag to qemu when setting up a SCSI disk, due to what was probably an erroneous merge conflict resolution. Malicious guest administrators or in some situations users may be able to write to supposedly read-only di...

CVE-2018-12893

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leadi...

x86: #DB exception safety check can be triggered by a guest

ISSUE DESCRIPTION One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. IMPACT A malicious PV guest can crash Xen, leading to a Denial of...

Speculative Store Bypass

ISSUE DESCRIPTION Contemporary high performance processors may use a technique commonly known as Memory Disambiguation, whereby speculative execution may proceed past unresolved stores. This opens a speculative sidechannel in which loads from an address which have had a recent store can observe a...

Microsoft Windows CVE-2018-1016 Remote Code Execution Vulnerability

Description Microsoft Windows is prone to a remote code-execution vulnerability. Attackers can exploit this issue to execute arbitrary code in the context of the affected application. Failed attacks will cause denial-of-service conditions. Technologies Affected Microsoft Windows 10 Version 1607 f...

Memcached UDP Reflection Attacks

Akamai is aware of a new DDoS reflection attack vector: UDP-based memcached traffic. Memcached is a tool meant to cache data and reduce strain on heavier data stores, like disk or databases. The protocol allows the server to be queried for information about key value stores and is only intended t...

improper bug check in x86 log-dirty handling

ISSUE DESCRIPTION Memory sharing, available to x86 HVM guests only, uses a special value in the global machine to physical address translation table M2P. PV guests have full control over M2P entries corresponding to pages they own. A bug check specifically, an assertion that an M2P entry is not t...

grant_table: Race conditions with maptrack free list handling

ISSUE DESCRIPTION The grant table code in Xen has a bespoke semi-lockfree allocator for recording grant mappings "maptrack" entries. This allocator has a race which allows the free list to be corrupted. Specifically: the code for removing an entry from the free list, prior to use, assumes without...

blkif responses leak backend stack data

ISSUE DESCRIPTION The block interface response structure has some discontiguous fields. Certain backends populate the structure fields of an otherwise uninitialized instance of this structure on their stacks, leaking data through the internal or trailing padding field. IMPACT A malicious...

uc-httpd Local File Inclusion / Traversal

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uc-http Daemon - Local File Inclusion Directory Traversal

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uc-http Daemon - Local File Inclusion / Directory Traversal

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