Qualys has discovered that OpenBSD suffers from multiple authentication bypass and local privilege escalation vulnerabilities.

Qualys discovered a local privilege escalation in OpenBSD's dynamic loader (ld.so). This vulnerability is exploitable in the default installation (via the set-user-ID executable chpass or passwd) and yields full root privileges. They developed a simple proof of concept and successfully tested it against OpenBSD 6.6 (the current release), 6.5, 6.2, and 6.1, on both amd64 and i386; other releases and architectures are probably also exploitable.

This Metasploit module exploits a vulnerability in the OpenBSD ld.so dynamic loader (CVE-2019-19726). The _dl_getenv() function fails to reset the LD_LIBRARY_PATH environment variable when set with approximately ARG_MAX colons. This can be abused to load libutil.so from an untrusted path, using LD_LIBRARY_PATH in combination with the chpass set-uid executable, resulting in privileged code execution. This module has been tested successfully on OpenBSD 6.1 (amd64) and OpenBSD 6.6 (amd64).

Qualys discovered a vulnerability in OpenSMTPD, OpenBSD's mail server. This vulnerability is exploitable since May 2018 (commit a8e222352f, "switch smtpd to new grammar") and allows an attacker to execute arbitrary shell commands, as root.

Microsoft Windows WizardOpium local privilege escalation exploit.

Microsoft Windows 10 SMB version 3.1.1 SMBGhost local privilege escalation exploit.

Microsoft Windows suffers from an NtFilterToken ParentTokenId incorrect setting that allows for elevation of privileges.

In Microsoft Windows, by using the poorly documented SE_SERVER_SECURITY Control flag it is possible to set an owner different to the caller, bypassing security checks.

This Metasploit module exploits a logic flaw due to how the lpApplicationName parameter is handled. When the lpApplicationName contains a space, the file name is ambiguous. Take this file path as example: C:program fileshello.exe; The Windows API will try to interpret this as two possible paths: C:program.exe, and C:program fileshello.exe, and then execute all of them. To some software developers, this is an unexpected behavior, which becomes a security problem if an attacker is able to place a malicious executable in one of these unexpected paths, sometimes escalate privileges if run as SYSTEM. Some software such as OpenVPN 2.1.1, OpenSSH Server 5, and others have the same problem.

Ubiquiti Networks UniFi Cloud Key with firmware versions 0.5.9 and 0.6.0 suffer from weak crypto, privilege escalation, and command injection vulnerabilities.

Microsoft Windows 7 Build 7601 (x86) local privilege escalation exploit.

The Plantronics Hub client application for Windows makes use of an automatic update service SpokesUpdateService.exe which automatically executes a file specified in the MajorUpgrade.config configuration file as SYSTEM. The configuration file is writable by all users by default. This module has been tested successfully on Plantronics Hub version 3.13.2 on Windows 7 SP1 (x64). This Metasploit module has been tested successfully on Plantronics Hub version 3.13.2 on Windows 7 SP1 (x64).

The Windscribe VPN client application for Windows makes use of a Windows service WindscribeService.exe which exposes a named pipe \.pipeWindscribeService allowing execution of programs with elevated privileges. Windscribe versions prior to 1.82 do not validate user-supplied program names, allowing execution of arbitrary commands as SYSTEM. This Metasploit module has been tested successfully on Windscribe versions 1.80 and 1.81 on Windows 7 SP1 (x64).

This Metasploit module leverages a trusted file overwrite with a dll hijacking vulnerability to gain SYSTEM-level access on vulnerable Windows 10 x64 targets.

This Metasploit module exploits a NULL pointer dereference vulnerability in MNGetpItemFromIndex(), which is reachable via a NtUserMNDragOver() system call. The NULL pointer dereference occurs because the xxxMNFindWindowFromPoint() function does not effectively check the validity of the tagPOPUPMENU objects it processes before passing them on to MNGetpItemFromIndex(), where the NULL pointer dereference will occur. This module has been tested against Windows 7 x86 SP0 and SP1. Offsets within the solution may need to be adjusted to work with other versions of Windows, such as Windows Server 2008.

Local root exploit for the FreeBSD mqueuefs vulnerability as disclosed in FreeBSD-SA-19:15.mqueuefs.

Local root exploit for the FreeBSD fd vulnerability as disclosed in FreeBSD-SA-19:02.fd.

CentOS Control Web Panel version 0.9.8.836 suffers from a privilege escalation vulnerability.

This Metasploit module attempts to gain root privileges by blindly injecting into the session user's running shell processes and executing commands by calling system(), in the hope that the process has valid cached sudo tokens with root privileges. The system must have gdb installed and permit ptrace. This module has been tested successfully on Debian 9.8 (x64) and CentOS 7.4.1708 (x64).

This Metasploit module attempts to gain root privileges with SUID Xorg X11 server versions 1.19.0 up to 1.20.3. A permission check flaw exists for -modulepath and -logfile options when starting Xorg. This allows unprivileged users that can start the server the ability to elevate privileges and run arbitrary code under root privileges. This module has been tested with CentOS 7 (1708). CentOS default install will require console auth for the users session. Xorg must have SUID permissions and may not start if running. On successful exploitation artifacts will be created consistent with starting Xorg.

This Metasploit module is an exploit that takes advantage of xglance-bin, part of HP's Glance (or Performance Monitoring) version 11 and subsequent, which was compiled with an insecure RPATH option. The RPATH includes a relative path to -L/lib64/ which can be controlled by a user. Creating libraries in this location will result in an escalation of privileges to root.

This Metasploit module exploits a vulnerability in the rds_page_copy_user function in net/rds/page.c (RDS) in Linux kernel versions 2.6.30 to 2.6.36-rc8 to execute code as root (CVE-2010-3904). This module has been tested successfully on Fedora 13 (i686) kernel version 2.6.33.3-85.fc13.i686.PAE and Ubuntu 10.04 (x86_64) with kernel version 2.6.32-21-generic.

Certain Secure Access SA Series SSL VPN products (originally developed by Juniper Networks but now sold and supported by Pulse Secure, LLC) allow privilege escalation, as demonstrated by Secure Access SSL VPN SA-4000 5.1R5 (build 9627) 4.2 Release (build 7631). This occurs because appropriate controls are not performed.

Whitepaper called Blind CreateRemoteThread Privilege Escalation.

Druva inSync Windows Client version 6.5.2 suffers from a local privilege escalation vulnerability.

Microsoft Windows suffers from a Desktop Bridge Virtual Registry arbitrary file read / write privilege escalation vulnerability.

Microsoft Windows suffers from a Desktop Bridge Virtual Registry NtLoadKey arbitrary file read / write privilege escalation vulnerability.

The VMX process (vmware-vmx.exe) process configures and hosts an instance of VM. As is common with desktop virtualization platforms the VM host usually has privileged access into the OS such as mapping physical memory which represents a security risk. To mitigate this the VMX process is created with an elevated integrity level by the authentication daemon (vmware-authd.exe) which runs at SYSTEM. This prevents a non-administrator user opening the process and abusing its elevated access. Unfortunately the process is created as the desktop user which results in the elevated process sharing resources such as COM registrations with the normal user who can modify the registry to force an arbitrary DLL to be loaded into the VMX process. Affects VMware Workstation Windows version 14.1.5 (on Windows 10). Also tested on VMware Player version 15.

This Metasploit module will bypass Windows UAC by hijacking a special key in the Registry under the current user hive, and inserting a custom command that will get invoked when Windows backup and restore is launched. It will spawn a second shell that has the UAC flag turned off. This module modifies a registry key, but cleans up the key once the payload has been invoked.

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Tracing functionality used by the Routing and Remote Access service. The issue results from the lack of proper permissions on registry keys that control this functionality. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

This Metasploit module attempts to exploit a race condition in mail.local with the SUID bit set on: NetBSD 7.0 - 7.0.1 (verified on 7.0.1), NetBSD 6.1 - 6.1.5, and NetBSD 6.0 - 6.0.6. Successful exploitation relies on a crontab job with root privilege, which may take up to 10min to execute.

Cisco Unified Contact Center Express suffers from a privilege escalation vulnerability.

Cisco AnyConnect Secure Mobility Client for Windows version 4.8.01090 suffer from a privilege escalation vulnerability due to insecure handling of path names.

IBM AIX High Availability Cluster Multiprocessing (HACMP) suffers from a local privilege escalation vulnerability that results in root privileges.

IBM AIX versions 6.1, 7.1, and 7.2 suffer from a Bellmail privilege escalation vulnerability.

CA Technologies support is alerting customers about a medium risk vulnerability that may allow a local attacker to gain additional privileges with products using CA Common Services running on the AIX, HP-UX, Linux, and Solaris platforms. The vulnerability, CVE-2016-9795, occurs due to insufficient validation by the casrvc program. A local unprivileged user can exploit the vulnerability to modify arbitrary files, which can potentially allow a local attacker to gain root level access.

Xorg X11 server on AIX local privilege escalation exploit.

This Metasploit module has been tested with AIX 7.1 and 7.2, and should also work with 6.1. Due to permission restrictions of the crontab in AIX, this module does not use cron, and instead overwrites /etc/passwd in order to create a new user with root privileges. All currently logged in users need to be included when /etc/passwd is overwritten, else AIX will throw 'Cannot get "LOGNAME" variable' when attempting to change user. The Xorg '-fp' parameter used in the OpenBSD exploit does not work on AIX, and is replaced by '-config', in conjuction with ANSI-C quotes to inject newlines when overwriting /etc/passwd.

The Windows kernel does not properly isolate broadcast messages from low integrity applications from medium or high integrity applications. This allows commands to be broadcasted to an open medium or high integrity command prompts allowing escalation of privileges. We can spawn a medium integrity command prompt, after spawning a low integrity command prompt, by using the Win+Shift+# combination to specify the position of the command prompt on the taskbar. We can then broadcast our command and hope that the user is away and doesn't corrupt it by interacting with the UI. Broadcast issue affects versions Windows Vista, 7, 8, Server 2008, Server 2008 R2, Server 2012, RT. But Spawning a command prompt with the shortcut key does not work in Vista so you will have to check if the user is already running a command prompt and set SPAWN_PROMPT false. The WEB technique will execute a powershell encoded payload from a Web location. The FILE technique will drop an executable to the file system, set it to medium integrity and execute it. The TYPE technique will attempt to execute a powershell encoded payload directly from the command line but it may take some time to complete.

Solaris version 11.4 xscreensaver local privilege escalation exploit.

This Metasploit module exploits a vulnerability in xscreensaver versions since 5.06 on unpatched Solaris 11 systems which allows users to gain root privileges. xscreensaver allows users to create a user-owned file at any location on the filesystem using the -log command line argument introduced in version 5.06. This module uses xscreensaver to create a log file in /usr/lib/secure/, overwrites the log file with a shared object, and executes the shared object using the LD_PRELOAD environment variable. This module has been tested successfully on xscreensaver version 5.15 on Solaris 11.1 (x86) and xscreensaver version 5.15 on Solaris 11.3 (x86).

SunOS version 5.10 Generic_147148-26 local privilege escalation exploit. A buffer overflow in the CheckMonitor() function in the Common Desktop Environment versions 2.3.1 and earlier and 1.6 and earlier, as distributed with Oracle Solaris 10 1/13 (Update 11) and earlier, allows local users to gain root privileges via a long palette name passed to dtsession in a malicious .Xdefaults file.

A buffer overflow in the _SanityCheck() function in the Common Desktop Environment version distributed with Oracle Solaris 10 1/13 (Update 11) and earlier allows local users to gain root privileges via a long calendar name or calendar owner passed to sdtcm_convert in a malicious calendar file. The open source version of CDE (based on the CDE 2.x codebase) is not affected, because it does not ship the vulnerable program. Versions 1.6 and below are affected.

smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell meta-characters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.

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