GitHub: Git for Windows' uninstaller vulnerable to DLL hijacking when run under the SYSTEM user account.

Git for Windows, the Windows port of Git, ships with an executable called `connect.exe`, which implements a SOCKS5 proxy that can be used to connect e.g. to SSH servers via proxies when certain ports are blocked for outgoing connections. The location of `connect.exe`'s config file is hard-coded as `/etc/connectrc` which will typically be interpreted as `C:\etc\connectrc`. Since `C:\etc` can be created by any authenticated user, this makes `connect.exe` susceptible to malicious files being placed there by other users on the same multi-user machine. The problem has been patched in Git for Windows v2.40.1. As a workaround, create the folder `etc` on all drives where Git commands are run, and remove read/write access from those folders. Alternatively, watch out for malicious `<drive>:\etc\connectrc` files on multi-user machines.

Git GUI is a convenient graphical tool that comes with Git for Windows. Its target audience is users who are uncomfortable with using Git on the command-line. Git GUI has a function to clone repositories. Immediately after the local clone is available, Git GUI will automatically post-process it, among other things running a spell checker called `aspell.exe` if it was found. Git GUI is implemented as a Tcl/Tk script. Due to the unfortunate design of Tcl on Windows, the search path when looking for an executable _always includes the current directory_. Therefore, malicious repositories can ship with an `aspell.exe` in their top-level directory which is executed by Git GUI without giving the user a chance to inspect it first, i.e. running untrusted code. This issue has been addressed in version 2.39.1. Users are advised to upgrade. Users unable to upgrade should avoid using Git GUI for cloning. If that is not a viable option, at least avoid cloning from untrusted sources.

Git for Windows is the Windows port of the revision control system Git. Prior to Git for Windows version 2.39.2, when `gitk` is run on Windows, it potentially runs executables from the current directory inadvertently, which can be exploited with some social engineering to trick users into running untrusted code. A patch is available in version 2.39.2. As a workaround, avoid using `gitk` (or Git GUI's "Visualize History" functionality) in clones of untrusted repositories.

Git for Windows is the Windows port of the revision control system Git. Prior to Git for Windows version 2.39.2, by carefully crafting DLL and putting into a subdirectory of a specific name living next to the Git for Windows installer, Windows can be tricked into side-loading said DLL. This potentially allows users with local write access to place malicious payloads in a location where automated upgrades might run the Git for Windows installer with elevation. Version 2.39.2 contains a patch for this issue. Some workarounds are available. Never leave untrusted files in the Downloads folder or its sub-folders before executing the Git for Windows installer, or move the installer into a different directory before executing it.

Git for Windows is a fork of Git containing Windows-specific patches. This vulnerability affects users working on multi-user machines, where untrusted parties have write access to the same hard disk. Those untrusted parties could create the folder `C:\.git`, which would be picked up by Git operations run supposedly outside a repository while searching for a Git directory. Git would then respect any config in said Git directory. Git Bash users who set `GIT_PS1_SHOWDIRTYSTATE` are vulnerable as well. Users who installed posh-gitare vulnerable simply by starting a PowerShell. Users of IDEs such as Visual Studio are vulnerable: simply creating a new project would already read and respect the config specified in `C:\.git\config`. Users of the Microsoft fork of Git are vulnerable simply by starting a Git Bash. The problem has been patched in Git for Windows v2.35.2. Users unable to upgrade may create the folder `.git` on all drives where Git commands are run, and remove read/write access from those folders as a workaround. Alternatively, define or extend `GIT_CEILING_DIRECTORIES` to cover the _parent_ directory of the user profile, e.g. `C:\Users` if the user profile is located in `C:\Users\my-user-name`.

Quick Heal Total Security 64 bit 17.00 (QHTS64.exe), (QHTSFT64.exe) - Version 10.0.1.38; Quick Heal Total Security 32 bit 17.00 (QHTS32.exe), (QHTSFT32.exe) - Version 10.0.1.38; Quick Heal Internet Security 64 bit 17.00 (QHIS64.exe), (QHISFT64.exe) - Version 10.0.0.37; Quick Heal Internet Security 32 bit 17.00 (QHIS32.exe), (QHISFT32.exe) - Version 10.0.0.37; Quick Heal AntiVirus Pro 64 bit 17.00 (QHAV64.exe), (QHAVFT64.exe) - Version 10.0.0.37; and Quick Heal AntiVirus Pro 32 bit 17.00 (QHAV32.exe), (QHAVFT32.exe) - Version 10.0.0.37 allow DLL Hijacking because of Insecure Library Loading.

A vulnerability, which was classified as problematic, has been found in KMPlayer 4.2.2.73. This issue affects some unknown processing in the library SHFOLDER.dll. The manipulation leads to uncontrolled search path. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The identifier VDB-224633 was assigned to this vulnerability.

VT STUDIO Ver.8.32 and earlier contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries. As a result, arbitrary code may be executed with the privileges of the running application.

Acronis Cyber Protect 15 for Windows prior to build 27009 and Acronis Agent for Windows prior to build 26226 allowed local privilege escalation via DLL hijacking.

A command Injection Vulnerability in TA for mac-OS prior to version 5.7.9 allows local users to place an arbitrary file into the /Library/Trellix/Agent/bin/ folder. The malicious file is executed by running the TA deployment feature located in the System Tree.

An Uncontrolled Search Path Element vulnerability in B&R Industrial Automation Scene Viewer, B&R Industrial Automation Automation Runtime, B&R Industrial Automation mapp Vision, B&R Industrial Automation mapp View, B&R Industrial Automation mapp Cockpit, B&R Industrial Automation mapp Safety, B&R Industrial Automation VC4, B&R Industrial Automation APROL, B&R Industrial Automation CAN Driver, B&R Industrial Automation CAN Driver CC770, B&R Industrial Automation CAN Driver SJA1000, B&R Industrial Automation Tou0ch Lock, B&R Industrial Automation B&R Single-Touch Driver, B&R Industrial Automation Serial User Mode Touch Driver, B&R Industrial Automation Windows Settings Changer (LTSC), B&R Industrial Automation Windows Settings Changer (2019 LTSC), B&R Industrial Automation Windows 10 Recovery Solution, B&R Industrial Automation ADI driver universal, B&R Industrial Automation ADI Development Kit, B&R Industrial Automation ADI .NET SDK, B&R Industrial Automation SRAM driver, B&R Industrial Automation HMI Service Center, B&R Industrial Automation HMI Service Center Maintenance, B&R Industrial Automation Windows 10 IoT Enterprise 2019 LTSC, B&R Industrial Automation KCF Editor could allow an authenticated local attacker to execute malicious code by placing specially crafted files in the loading search path..This issue affects Scene Viewer: before 4.4.0; Automation Runtime: before J4.93; mapp Vision: before 5.26.1; mapp View: before 5.24.2; mapp Cockpit: before 5.24.2; mapp Safety: before 5.24.2; VC4: before 4.73.2; APROL: before 4.4-01; CAN Driver: before 1.1.0; CAN Driver CC770: before 3.3.0; CAN Driver SJA1000: before 1.3.0; Tou0ch Lock: before 2.1.0; B&R Single-Touch Driver: before 2.0.0; Serial User Mode Touch Driver: before 1.7.1; Windows Settings Changer (LTSC): before 3.2.0; Windows Settings Changer (2019 LTSC): before 2.2.0; Windows 10 Recovery Solution: before 3.2.0; ADI driver universal: before 3.2.0; ADI Development Kit: before 5.5.0; ADI .NET SDK: before 4.1.0; SRAM driver: before 1.2.0; HMI Service Center: before 3.1.0; HMI Service Center Maintenance: before 2.1.0; Windows 10 IoT Enterprise 2019 LTSC: through 1.1; KCF Editor: before 1.1.0.

Uncontrolled Search Path Element in GitHub repository bits-and-blooms/bloom prior to 3.3.1.

An issue was discovered in Foxit Reader and PhantomPDF before 10.1.4. It allows DLL hijacking, aka CNVD-C-2021-68000 and CNVD-C-2021-68502.

Loading a DLL through an Uncontrolled Search Path Element in the Bosch Monitor Wall installer up to and including version 10.00.0164 potentially allows an attacker to execute arbitrary code on a victim's system. A prerequisite is that the victim is tricked into placing a malicious DLL in the same directory where the installer is started from.

Trend Micro uiAirSupport, included in the Trend Micro Security 2023 family of consumer products, version 6.0.2092 and below is vulnerable to a DLL hijacking/proxying vulnerability, which if exploited could allow an attacker to impersonate and modify a library to execute code on the system and ultimately escalate privileges on an affected system.

Genymotion Desktop v3.3.2 was discovered to contain a DLL hijacking vulnerability that allows attackers to escalate privileges and execute arbitrary code via a crafted DLL.

A DLL hijacking vulnerability has been discovered in OutSystems Service Studio 11 11.53.30 build 61739. When a user open a .oml file (OutSystems Modeling Language), the application will load the following DLLs from the same directory av_libGLESv2.dll, libcef.DLL, user32.dll, and d3d10warp.dll. Using a crafted DLL, it is possible to execute arbitrary code in the context of the current logged in user.

Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.

Delta Electronics CNCSoft-B DOPSoft prior to v4.0.0.82 insecurely loads libraries, which may allow an attacker to use DLL hijacking and take over the system where the software is installed.

Substance3D - Modeler versions 1.22.0 and earlier are affected by an Uncontrolled Search Path Element vulnerability that could result in arbitrary code execution in the context of the current user. If the application uses an uncontrolled search path to locate critical resources such as programs, an attacker could modify that search path to point to a malicious program, which the targeted application would then execute. Exploitation of this issue does not require user interaction.

OpenVPN Connect 3.2.0 through 3.3.0 allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (OpenVPNConnect.exe).

A binary hijack in Orwell-Dev-Cpp v5.11 allows attackers to execute arbitrary code via a crafted .exe file.

A vulnerability, which was classified as critical, was found in VSO ConvertXtoDvd 7.0.0.83. Affected is an unknown function in the library avcodec.dll of the file ConvertXtoDvd.exe. The manipulation leads to uncontrolled search path. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Multiple DLL Search Order Hijack vulnerabilities were addressed in the SanDisk Security Installer for Windows that could allow attackers with local access to execute arbitrary code by executing the installer in the same folder as the malicious DLL. This can lead to the execution of arbitrary code with the privileges of the vulnerable application or obtain a certain level of persistence on the compromised host. 

A DLL preloading vulnerability was reported in Lenovo Driver Management prior to version 2.9.0719.1104 that could allow privilege escalation.

OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).

dandavison delta before 0.8.3 on Windows resolves an executable's pathname as a relative path from the current directory.

The vulnerability, if exploited, could allow a malicious entity with access to the file system to achieve arbitrary code execution and privilege escalation by tricking AVEVA Edge to load an unsafe DLL.

An uncontrolled search path element vulnerability has been found in the Duet Display product, affecting version 2.5.9.1. An attacker could place an arbitrary libusk.dll file in the C:\Users\user\AppData\Local\Microsoft\WindowsApps\ directory, which could lead to the execution and persistence of arbitrary code.

A vulnerability was found in XINJE XDPPro up to 3.7.17a. It has been rated as critical. Affected by this issue is some unknown functionality in the library cfgmgr32.dll. The manipulation leads to uncontrolled search path. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. VDB-241586 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

An issue was discovered in Regify Regipay Client for Windows version 4.5.1.0 allows DLL hijacking: a user can trigger the execution of arbitrary code every time the product is executed.

DPMAdirektPro 4.1.5 is vulnerable to DLL Hijacking. It happens by placing a malicious DLL in a directory (in the absence of a legitimate DLL), which is then loaded by the application instead of the legitimate DLL. This causes the malicious DLL to load with the same privileges as the application, thus causing a privilege escalation.

Acronis True Image prior to 2021 Update 4 for Windows allowed local privilege escalation due to DLL hijacking.

Substance3D - Modeler versions 1.21.0 and earlier are affected by an Uncontrolled Search Path Element vulnerability that could result in arbitrary code execution in the context of the current user. If the application relies on a search path to locate critical resources such as libraries or executables, an attacker could manipulate the search path to load a malicious resource, potentially executing arbitrary code. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

A vulnerability, which was classified as critical, has been found in Discord 1.0.9188 on Windows. Affected by this issue is some unknown functionality in the library WINSTA.dll. The manipulation leads to uncontrolled search path. The attack needs to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

It is possible to sideload a compromised DLL during the installation at elevated privilege.

Local privilege escalation due to DLL hijacking vulnerability. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40901, Acronis Cyber Protect Cloud Agent (Windows) before build 39378, Acronis Cyber Protect 16 (Windows) before build 39938.

An uncontrolled search path element vulnerability has been found on 4D and 4D server Windows executables applications, affecting version 19 R8 100218. This vulnerability consists in a DLL hijacking by replacing x64 shfolder.dll in the installation path, causing an arbitrary code execution.

An issue found in UwAmp v.1.1, 1.2, 1.3, 2.0, 2.1, 2.2, 2.2.1, 3.0.0, 3.0.1, 3.0.2 allows a remote attacker to execute arbitrary code via a crafted DLL.

Emerson DeltaV DCS versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, R5 allow a specially crafted DLL file to be placed in the search path and loaded as an internal and valid DLL, which may allow arbitrary code execution.

When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird. If a computer has already been infected with a malicious library of the alternative filename, and the malicious library has been copied to a directory that is contained in the search path for executable libraries, then Thunderbird will load the incorrect library. This vulnerability affects Thunderbird < 78.9.1.

Dr.Web Firewall 12.5.2.4160 on Windows incorrectly restricts applications signed by Dr.Web. A DLL for a custom payload within a legitimate binary (e.g., frwl_svc.exe) bypasses firewall filters.

The unofficial C/C++ Advanced Lint extension before 1.9.0 for Visual Studio Code allows attackers to execute arbitrary binaries if the user opens a crafted repository.

Trend Micro Password Manager version 5 (Consumer) is vulnerable to a DLL Hijacking vulnerability which could allow an attacker to inject a malicious DLL file during the installation progress and could execute a malicious program each time a user installs a program.

Adobe Dimension version 3.4 (and earlier) is affected by an Uncontrolled Search Path Element element. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

An issue was discovered in Forescout CounterACT before 8.1.4. A local privilege escalation vulnerability is present in the logging function. SecureConnector runs with administrative privileges and writes logs entries to a file in %PROGRAMDATA%\ForeScout SecureConnector\ that has full permissions for the Everyone group. Using a symbolic link allows an attacker to point the log file to a privileged location such as %WINDIR%\System32. The resulting log file adopts the file permissions of the source of the symbolic link (in this case, the Everyone group). The log file in System32 can be replaced and renamed with a malicious DLL for DLL hijacking.

Untrusted search path vulnerability in The installer of Windows 10 Fall Creators Update Modify module for Security Measures tool allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Adobe Creative Cloud Desktop Application (installer) version 2.4 (and earlier) is affected by an Uncontrolled Search Path Element vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.