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Files from Spencer McIntyre

Email addresssmcintyre at securestate.com
First Active2011-01-12
Last Active2021-06-17
Microsoft SharePoint Unsafe Control And ViewState Remote Code Execution
Posted Jun 17, 2021
Authored by unknown, Spencer McIntyre, wvu | Site metasploit.com

The EditingPageParser.VerifyControlOnSafeList method fails to properly validate user supplied data. This can be leveraged by an attacker to leak sensitive information in rendered-preview content. This module will leak the ViewState validation key and then use it to sign a crafted object that will trigger code execution when deserialized. Tested against SharePoint 2019 and SharePoint 2016, both on Windows Server 2016.

tags | exploit, code execution
systems | windows
advisories | CVE-2021-31181
MD5 | 06c869049b57ec2373612b22d547cd4a
Dell DBUtil_2_3.sys IOCTL Memory Read / Write
Posted May 17, 2021
Authored by Spencer McIntyre, SentinelLabs, Kasif Dekel | Site metasploit.com

The DBUtil_2_3.sys driver distributed by Dell exposes an unprotected IOCTL interface that can be abused by an attacker to read and write kernel-mode memory.

tags | exploit, kernel
advisories | CVE-2021-21551
MD5 | b66f29a91205e97f309e8b348c4bacc8
Apache OFBiz SOAP Java Deserialization
Posted Apr 6, 2021
Authored by Spencer McIntyre, wvu, yumusb | Site metasploit.com

This Metasploit module exploits a Java deserialization vulnerability in Apache OFBiz's unauthenticated SOAP endpoint /webtools/control/SOAPService for versions prior to 17.12.06.

tags | exploit, java
advisories | CVE-2021-26295
MD5 | 0c60a02f29914741889c08a1688d97ff
Advantech iView Unauthenticated Remote Code Execution
Posted Mar 23, 2021
Authored by Spencer McIntyre, wvu | Site metasploit.com

This Metasploit module exploits an unauthenticated configuration change combined with an unauthenticated file write primitive, leading to an arbitrary file write that allows for remote code execution as the user running iView, which is typically NT AUTHORITY\SYSTEM. This issue was demonstrated in the vulnerable version 5.7.02.5992 and fixed in version 5.7.03.6112.

tags | exploit, remote, arbitrary, code execution
advisories | CVE-2021-22652
MD5 | fd032d94df7616e2fe434facdd644277
Win32k ConsoleControl Offset Confusion
Posted Mar 19, 2021
Authored by Spencer McIntyre, BITTER APT, LiHao, KaLendsi, MaDongZe, TuXiaoYi, JinQuan | Site metasploit.com

A vulnerability exists within win32k that can be leveraged by an attacker to escalate privileges to those of NT AUTHORITY\SYSTEM. The flaw exists in how the WndExtra field of a window can be manipulated into being treated as an offset despite being populated by an attacker-controlled value. This can be leveraged to achieve an out of bounds write operation, eventually leading to privilege escalation.

tags | exploit
advisories | CVE-2021-1732
MD5 | e274220882ab8ab04e644c948cae5ff3
Sudo 1.8.31p2 / 1.9.5p1 Buffer Overflow
Posted Feb 5, 2021
Authored by Blasty, Spencer McIntyre, Qualys Security Advisory, bwatters-r7, Alexander Krog | Site metasploit.com

A heap based buffer overflow exists in the sudo command line utility that can be exploited by a local attacker to gain elevated privileges. The vulnerability was introduced in July of 2011 and affects version 1.8.2 through 1.8.31p2 as well as 1.9.0 through 1.9.5p1 in their default configurations. The technique used by this implementation leverages the overflow to overwrite a service_user struct in memory to reference an attacker controlled library which results in it being loaded with the elevated privileges held by sudo.

tags | exploit, overflow, local
advisories | CVE-2021-3156
MD5 | 5a520123546e73d450b7fef8df23c9de
Apache Struts 2 Forced Multi OGNL Evaluation
Posted Dec 24, 2020
Authored by Matthias Kaiser, Spencer McIntyre, Alvaro Munoz, ka1n4t | Site metasploit.com

The Apache Struts framework, when forced, performs double evaluation of attribute values assigned to certain tags attributes such as id. It is therefore possible to pass in a value to Struts that will be evaluated again when a tag's attributes are rendered. With a carefully crafted request, this can lead to remote code execution. This vulnerability is application dependant. A server side template must make an affected use of request data to render an HTML tag attribute.

tags | exploit, remote, code execution
advisories | CVE-2019-0230, CVE-2020-17530
MD5 | a00ae15a323f6cf0ba8c86991a9f2707
Pulse Secure VPN Remote Code Execution
Posted Dec 18, 2020
Authored by h00die, Spencer McIntyre, Richard Warren, David Cash | Site metasploit.com

The Pulse Connect Secure appliance versions prior to 9.1R9 suffer from an uncontrolled gzip extraction vulnerability which allows an attacker to overwrite arbitrary files, resulting in remote code execution as root. Admin credentials are required for successful exploitation.

tags | exploit, remote, arbitrary, root, code execution
advisories | CVE-2020-8260
MD5 | 59e340f2d15da503b7cef81774ba584f
Telerik UI ASP.NET AJAX RadAsyncUpload Deserialization
Posted Oct 20, 2020
Authored by Spencer McIntyre, Oleksandr Mirosh, Markus Wulftange, Alvaro Munoz, Paul Taylor, Caleb Gross, straightblast | Site metasploit.com

This Metasploit module exploits the .NET deserialization vulnerability within the RadAsyncUpload (RAU) component of Telerik UI ASP.NET AJAX that is identified as CVE-2019-18935. In order to do so the module must upload a mixed mode .NET assembly DLL which is then loaded through the deserialization flaw. Uploading the file requires knowledge of the cryptographic keys used by RAU. The default values used by this module are related to CVE-2017-11317, which once patched randomizes these keys. It is also necessary to know the version of Telerik UI ASP.NET that is running. This version number is in the format YYYY.#(.###)? where YYYY is the year of the release (e.g. 2020.3.915).

tags | exploit, asp
advisories | CVE-2017-11317, CVE-2019-18935
MD5 | 1681e42767479128abf9e29c90cc76ef
SharePoint DataSet / DataTable Deserialization
Posted Jul 31, 2020
Authored by Soroush Dalili, mr_me, Spencer McIntyre | Site metasploit.com

A remotely exploitable vulnerability exists within SharePoint that can be leveraged by a remote authenticated attacker to execute code within the context of the SharePoint application service. The privileges in this execution context are determined by the account that is specified when SharePoint is installed and configured. The vulnerability is related to a failure to validate the source of XML input data, leading to an unsafe deserialization operation that can be triggered from a page that initializes either the ContactLinksSuggestionsMicroView type or a derivative of it. In a default configuration, a Domain User account is sufficient to access SharePoint and exploit this vulnerability.

tags | exploit, remote
advisories | CVE-2020-1147
MD5 | 1951b8a6649841f289b9e4feb3f9e3b0
AnyDesk GUI Format String Write
Posted Jul 2, 2020
Authored by Spencer McIntyre, scryh | Site metasploit.com

The AnyDesk GUI is vulnerable to a remotely exploitable format string vulnerability. By sending a specially crafted discovery packet, an attacker can corrupt the frontend process when it loads or refreshes. While the discovery service is always running, the GUI frontend must be started to trigger the vulnerability. On successful exploitation, code is executed within the context of the user who started the AnyDesk GUI.

tags | exploit
advisories | CVE-2020-13160
MD5 | e9ef3a85832f0886a5ba8ac4e7bad664
Plesk / myLittleAdmin ViewState .NET Deserialization
Posted May 22, 2020
Authored by Spencer McIntyre, wvu | Site metasploit.com

This Metasploit module exploits a ViewState .NET deserialization vulnerability in web-based MS SQL Server management tool myLittleAdmin, for version 3.8 and likely older versions, due to hardcoded machineKey parameters in the web.config file for ASP.NET. Popular web hosting control panel Plesk offers myLittleAdmin as an optional component that is selected automatically during "full" installation. This exploit caters to the Plesk target, though it should work fine against a standalone myLittleAdmin setup. Successful exploitation results in code execution as the user running myLittleAdmin, which is IUSRPLESK_sqladmin for Plesk and described as the "SQL Admin MSSQL anonymous account". Tested on the latest Plesk Obsidian with optional myLittleAdmin 3.8.

tags | exploit, web, code execution, asp
advisories | CVE-2020-13166
MD5 | 863f2f71f0ddb8aeb000570885bf0d3f
SMBv3 Compression Buffer Overflow
Posted Apr 6, 2020
Authored by Spencer McIntyre, Daniel Garcia Gutierrez, Manuel Blanco Parajon | Site metasploit.com

A vulnerability exists within the Microsoft Server Message Block 3.1.1 (SMBv3) protocol that can be leveraged to execute code on a vulnerable server. This local exploit implementation leverages this flaw to elevate itself before injecting a payload into winlogon.exe.

tags | exploit, local, protocol
advisories | CVE-2020-0796
MD5 | e501e1f41664d21dafdcafb9634371c8
SharePoint Workflows XOML Injection
Posted Mar 26, 2020
Authored by Soroush Dalili, Spencer McIntyre | Site metasploit.com

This Metasploit module exploits a vulnerability within SharePoint and its .NET backend that allows an attacker to execute commands using specially crafted XOML data sent to SharePoint via the Workflows functionality.

tags | exploit
advisories | CVE-2020-0646
MD5 | 5b6ade0c1b4442dfc1e0314f571595ad
SQL Server Reporting Services (SSRS) ViewState Deserialization
Posted Mar 12, 2020
Authored by Soroush Dalili, Spencer McIntyre | Site metasploit.com

A vulnerability exists within Microsoft's SQL Server Reporting Services which can allow an attacker to craft an HTTP POST request with a serialized object to achieve remote code execution. The vulnerability is due to the fact that the serialized blob is not signed by the server.

tags | exploit, remote, web, code execution
advisories | CVE-2020-0618
MD5 | 0c8baebbb6c756de8b19d1b75adb66b5
Exchange Control Panel Viewstate Deserialization
Posted Mar 4, 2020
Authored by Spencer McIntyre | Site metasploit.com

This Metasploit module exploits a .NET serialization vulnerability in the Exchange Control Panel (ECP) web page. The vulnerability is due to Microsoft Exchange Server not randomizing the keys on a per-installation basis resulting in them using the same validationKey and decryptionKey values. With knowledge of these, values an attacker can craft a special viewstate to cause an OS command to be executed by NT_AUTHORITY\SYSTEM using .NET deserialization.

tags | exploit, web
advisories | CVE-2020-0688
MD5 | ed889ec6ff5a153c3263e25acbc08820
RDP DOUBLEPULSAR Remote Code Execution
Posted Feb 4, 2020
Authored by Luke Jennings, Spencer McIntyre, wvu, Tom Sellers, Shadow Brokers, Equation Group | Site metasploit.com

This Metasploit module executes a Metasploit payload against the Equation Group's DOUBLEPULSAR implant for RDP. While this module primarily performs code execution against the implant, the "Neutralize implant" target allows you to disable the implant.

tags | exploit, code execution
MD5 | 17347c2786d7d69040d62415c11b7c42
Microsoft Windows LNK File Code Execution
Posted Nov 8, 2017
Authored by Yorick Koster, Spencer McIntyre | Site metasploit.com

This Metasploit module exploits a vulnerability in the handling of Windows Shortcut files (.LNK) that contain a dynamic icon, loaded from a malicious DLL. This vulnerability is a variant of MS15-020 (CVE-2015-0096). The created LNK file is similar except an additional SpecialFolderDataBlock is included. The folder ID set in this SpecialFolderDataBlock is set to the Control Panel. This is enough to bypass the CPL whitelist. This bypass can be used to trick Windows into loading an arbitrary DLL file. The PATH option must be an absolute path to a writeable directory which is indexed for searching. If no PATH is specified, the module defaults to %USERPROFILE%.

tags | exploit, arbitrary
systems | windows
advisories | CVE-2015-0095, CVE-2017-8464
MD5 | e8d2e4d615be10d88bf8b20b6b549143
Razer Synapse rzpnk.sys ZwOpenProcess
Posted Jul 22, 2017
Authored by Spencer McIntyre | Site metasploit.com

A vulnerability exists in the latest version of Razer Synapse (v2.20.15.1104 as of the day of disclosure) which can be leveraged locally by a malicious application to elevate its privileges to those of NT_AUTHORITY\SYSTEM.

tags | exploit, web, arbitrary, shellcode
advisories | CVE-2017-9769
MD5 | 05dbcbf512b9be0da1b9ceddb93d860c
PHPMailer Sendmail Argument Injection
Posted Jan 4, 2017
Authored by Dawid Golunski, Spencer McIntyre | Site metasploit.com

PHPMailer versions up to and including 5.2.19 are affected by a vulnerability which can be leveraged by an attacker to write a file with partially controlled contents to an arbitrary location through injection of arguments that are passed to the sendmail binary. This Metasploit module writes a payload to the web root of the webserver before then executing it with an HTTP request. The user running PHPMailer must have write access to the specified WEB_ROOT directory and successful exploitation can take a few minutes.

tags | exploit, web, arbitrary, root
advisories | CVE-2016-10033, CVE-2016-10045
MD5 | a8dc72e0680b992ed76e35257184f274
PowerShellEmpire Arbitrary File Upload (Skywalker)
Posted Nov 18, 2016
Authored by Spencer McIntyre, Erik Daguerre | Site metasploit.com

A vulnerability existed in the PowerShellEmpire server prior to commit f030cf62 which would allow an arbitrary file to be written to an attacker controlled location with the permissions of the Empire server. This exploit will write the payload to /tmp/ directory followed by a cron.d file to execute the payload.

tags | exploit, arbitrary
MD5 | 6dd255ac3b4ace7f8e1264d54a7d922b
HTA Web Server
Posted Oct 12, 2016
Authored by Spencer McIntyre | Site metasploit.com

This Metasploit module hosts an HTML Application (HTA) that when opened will run a payload via Powershell. When a user navigates to the HTA file they will be prompted by IE twice before the payload is executed.

tags | exploit
MD5 | 9e72e42af707da32ec75302dd82c4ae3
Windows TrackPopupMenu Win32k NULL Pointer Dereference
Posted Oct 28, 2014
Authored by Spencer McIntyre, juan vazquez, temp66 | Site metasploit.com

This Metasploit module exploits a NULL Pointer Dereference in win32k.sys, the vulnerability can be triggered through the use of TrackPopupMenu. Under special conditions, the NULL pointer dereference can be abused on xxxSendMessageTimeout to achieve arbitrary code execution. This Metasploit module has been tested successfully on Windows XP SP3, Windows 2003 SP2, Windows 7 SP1 and Windows 2008 32bits. Also on Windows 7 SP1 and Windows 2008 R2 SP1 64 bits.

tags | exploit, arbitrary, code execution
systems | windows, xp, 7
advisories | CVE-2014-4113
MD5 | 52feb4363d45b4378ac8a66855db145f
Pure-FTPd External Authentication Bash Environment Variable Code Injection
Posted Oct 2, 2014
Authored by Frank Denis, Spencer McIntyre, Stephane Chazelas | Site metasploit.com

This Metasploit module exploits the code injection flaw known as shellshock which leverages specially crafted environment variables in Bash. This exploit specifically targets Pure-FTPd when configured to use an external program for authentication.

tags | exploit, bash
advisories | CVE-2014-6271
MD5 | 1509d16ef5a69d2e95b0b3996782eef8
MQAC.sys Arbitrary Write Privilege Escalation
Posted Jul 25, 2014
Authored by Spencer McIntyre, Matt Bergin | Site metasploit.com

A vulnerability within the MQAC.sys module allows an attacker to overwrite an arbitrary location in kernel memory. This Metasploit module will elevate itself to SYSTEM, then inject the payload into another SYSTEM process.

tags | exploit, arbitrary, kernel
advisories | CVE-2014-4971
MD5 | feb4824b786f7e7f8c1a0fb58ac6aae6
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