The chkstat tool in the permissions package followed symlinks before commit a9e1d26cd49ef9ee0c2060c859321128a6dd4230 (please also check the additional hardenings after this fix). This allowed local attackers with control over a path that is traversed by chkstat to escalate privileges.

A Symbolic Link (Symlink) Following vulnerability in the packaging of munge in SUSE Linux Enterprise Server 15; openSUSE Factory allowed local attackers to escalate privileges from user munge to root. This issue affects: SUSE Linux Enterprise Server 15 munge versions prior to 0.5.13-4.3.1. openSUSE Factory munge versions prior to 0.5.13-6.1.

Windows Image Acquisition Elevation of Privilege Vulnerability

Connected User Experiences and Telemetry Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.

A Symbolic Link (Symlink) Following vulnerability in the packaging of munin in openSUSE Factory, Leap 15.1 allows local attackers to escalate from user munin to root. This issue affects: openSUSE Factory munin version 2.0.49-4.2 and prior versions. openSUSE Leap 15.1 munin version 2.0.40-lp151.1.1 and prior versions.

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.

Reliability Analysis Metrics Calculation Engine (RACEng) Elevation of Privilege Vulnerability

Windows Storage Elevation of Privilege Vulnerability

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Shibboleth Service Provider (SP) 3.x before 3.1.0 shipped a spec file that calls chown on files in a directory controlled by the service user (the shibd account) after installation. This allows the user to escalate to root by pointing symlinks to files such as /etc/shadow.

Azure Connected Machine Agent Elevation of Privilege Vulnerability

Microsoft OfficePlus Elevation of Privilege Vulnerability

A security agent link following vulnerability in Trend Micro Apex One could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

A privilege escalation vulnerability exists in the virtual machine archive restoration functionality of Parallels Desktop for Mac version 20.1.1 (55740). When an archived virtual machine is restored, the prl_vmarchiver tool decompresses the file and writes the content back to its original location using root privileges. An attacker can exploit this process by using a hard link to write to an arbitrary file, potentially resulting in privilege escalation.

RenderDoc before 1.27 allows local privilege escalation via a symlink attack. It relies on the /tmp/RenderDoc directory regardless of ownership.

Microsoft Office Elevation of Privilege Vulnerability

Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability

Wacom Drivers for Windows Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Wacom Drivers for 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 Tablet Service. By creating a symbolic link, an attacker can abuse the service to create a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-16857.

A security agent link following vulnerability in Trend Micro Apex One could allow a local attacker to exploit the vulnerability by changing a specific file into a pseudo-symlink, allowing privilege escalation on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

A link following vulnerability in the scanning function of Trend Micro Apex One agent could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

A link following vulnerability in the scanning function of Trend Micro Apex One and Worry-Free Business Security agents could allow a local attacker to escalate privileges on affected installations. The resolution for this issue has been deployed automatically via ActiveUpdate to customers in an updated Spyware pattern. Customers who are up-to-date on detection patterns are not required to take any additional steps to mitigate this issue.

A security agent link following vulnerability in the Trend Micro Apex One agent could allow a local attacker to quarantine a file, delete the original folder and replace with a junction to an arbitrary location, ultimately leading to an arbitrary file dropped to an arbitrary location. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Microsoft OneDrive for MacOS Elevation of Privilege Vulnerability

systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.

Windows Print Spooler Elevation of Privilege Vulnerability

This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

A vulnerability has been discovered in cloudflared's installer (<= 2023.3.0) for Windows 32-bits devices that allows a local attacker with no administrative permissions to escalate their privileges on the affected device. This vulnerability exists because the MSI installer used by cloudflared relied on a world-writable directory. An attacker with local access to the device (without Administrator rights) can use symbolic links to trick the MSI installer into deleting files in locations that the attacker would otherwise have no access to. By creating a symlink from the world-writable directory to the target file, the attacker can manipulate the MSI installer's repair functionality to delete the target file during the repair process. Exploitation of this vulnerability could allow an attacker to delete important system files or replace them with malicious files, potentially leading to the affected device being compromised. The cloudflared client itself is not affected by this vulnerability, only the installer for 32-bit Windows devices.

An unprivileged (non-admin) user can exploit an Improper Access Control vulnerability in the Cloudflare WARP Client for Windows (<= 2022.12.582.0) to perform privileged operations with SYSTEM context by working with a combination of opportunistic locks (oplock) and symbolic links (which can both be created by an unprivileged user). After installing the Cloudflare WARP Client (admin privileges required), an MSI-Installer is placed under C:\Windows\Installer. The vulnerability lies in the repair function of this MSI. ImpactAn unprivileged (non-admin) user can exploit this vulnerability to perform privileged operations with SYSTEM context, including deleting arbitrary files and reading arbitrary file content. This can lead to a variety of attacks, including the manipulation of system files and privilege escalation. PatchesA new installer with a fix that addresses this vulnerability was released in version 2023.3.381.0. While the WARP Client itself is not vulnerable (only the installer), users are encouraged to upgrade to the latest version and delete any older installers present in their systems.

Improper link resolution before file access ('link following') in Host Process for Windows Tasks allows an authorized attacker to elevate privileges locally.

Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (<= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files.

A link following vulnerability in the Damage Cleanup Engine component of Trend Micro Apex One and Trend Micro Apex One as a Service could allow a local attacker to escalate privileges by creating a symbolic link and abusing the service to delete a file. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Arbitrary File Delete vulnerability in Razer Central before v7.8.0.381 when handling files in the Accounts directory.

Azure Network Watcher VM Extension Elevation of Privilege Vulnerability

NVIDIA GeForce Experience contains a vulnerability in the NVContainer component, where a user without administrator privileges can create a symbolic link to a file that requires elevated privileges to write to or modify, which may lead to denial of service, escalation of privilege or limited data tampering.

A link following vulnerability in Trend Micro Deep Security 20 and Cloud One - Workload Security Agent for Windows could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Trend Micro Security 2022 (consumer) has a link following vulnerability where an attacker with lower privileges could manipulate a mountpoint which could lead to escalation of privilege on an affected machine.

Comodo Antivirus 12.2.2.8012 has a quarantine flaw that allows privilege escalation. To escalate privilege, a low-privileged attacker can use an NTFS directory junction to restore a malicious DLL from quarantine into the System32 folder.

A local privilege escalation vulnerability in Bitdefender Total Security 27.0.46.231 allows low-privileged attackers to elevate privileges. The issue arises from bdservicehost.exe deleting files from a user-writable directory (C:\ProgramData\Atc\Feedback) without proper symbolic link validation, enabling arbitrary file deletion. This issue is chained with a file copy operation during network events and a filter driver bypass via DLL injection to achieve arbitrary file copy and code execution as elevated user.

The init script in the Debian x11-common package before 1:7.6+12 is vulnerable to a symlink attack that can lead to a privilege escalation during package installation.

Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already exist. The Drive Composer installer file allows a low-privileged user to run a "repair" operation on the product.

A Improper Link Resolution Before File Access ('Link Following') vulnerability in a script called by the sendmail systemd service of openSUSE Factory allows local attackers to escalate from user mail to root. This issue affects: SUSE openSUSE Factory sendmail versions prior to 8.17.1-1.1.

Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already exist. The Drive Composer installer file allows a low-privileged user to run a "repair" operation on the product.

Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already exist. The Drive Composer installer file allows a low-privileged user to run a "repair" operation on the product.

A UNIX Symbolic Link (Symlink) Following vulnerability in keylime of openSUSE Tumbleweed allows local attackers to escalate from the keylime user to root. This issue affects: openSUSE Tumbleweed keylime versions prior to 6.4.2-1.1.

Vulnerabilities in the Drive Composer allow a low privileged attacker to create and write to a file anywhere on the file system as SYSTEM with arbitrary content as long as the file does not already exist. The Drive Composer installer file allows a low-privileged user to run a "repair" operation on the product.

Trend Micro Password Manager (Consumer) version 5.0.0.1266 and below is vulnerable to a Link Following Privilege Escalation Vulnerability that could allow a low privileged local attacker to delete the contents of an arbitrary folder as SYSTEM which can then be used for privilege escalation on the affected machine.

yt-grabber-tui is a terminal user interface application for downloading videos. In versions before 1.0-rc, the application allows users to configure the path to the yt-dlp executable via the path_to_yt_dlp configuration setting. An attacker with write access to the configuration file or the filesystem location of the configured executable can replace the executable with malicious code or create a symlink to an arbitrary executable. When the application invokes yt-dlp, the malicious code is executed with the privileges of the user running yt-grabber-tui. This vulnerability has been patched in version 1.0-rc.

Improper link resolution before file access ('link following') in Windows Health and Optimized Experiences Service allows an authorized attacker to elevate privileges locally.

Measuresoft ScadaPro Server and Client (All Versions) do not properly resolve links before file access; this could allow privilege escalation..