Ilex International Sign&go Workstation Security Suite 7.1 allows elevation of privileges via a symlink attack on ProgramData\Ilex\S&G\Logs\000-sngWSService1.log.

Writing to an unprivileged file from a privileged OVRRedir.exe process in Oculus Desktop before 1.44.0.32849 on Windows allows local users to write to arbitrary files and consequently gain privileges via vectors involving a hard link to a log file.

Improper directory permissions in the Hotspot Shield VPN client software for Windows 10.3.0 and earlier may allow an authorized user to potentially enable escalation of privilege via local access. The vulnerability allows a local user to corrupt system files: a local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

chromium-browser: Insufficient data validation in installer

Insufficient data validation in installer in Google Chrome prior to 86.0.4240.183 allowed a local attacker to potentially elevate privilege via a crafted filesystem.

Overwolf before 0.149.2.30 mishandles Symbolic Links during updates, causing elevation of privileges.

IOBit Malware Fighter Pro 8.0.2.547 allows local users to gain privileges for file deletion by manipulating malicious flagged file locations with an NTFS junction and an Object Manager symbolic link.

Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp.

OpenVPN Connect installer for macOS version 3.2.6 and older may corrupt system critical files it should not have access via symlinks in /tmp.

IOBit Advanced SystemCare Free 13.5.0.263 allows local users to gain privileges for file deletion by manipulating the Clean & Optimize feature with an NTFS junction and an Object Manager symbolic link.

chrony: Insecure writing to PID file

A flaw was found in chrony versions before 3.5.1 when creating the PID file under the /var/run/chrony folder. The file is created during chronyd startup while still running as the root user, and when it's opened for writing, chronyd does not check for an existing symbolic link with the same file name. This flaw allows an attacker with privileged access to create a symlink with the default PID file name pointing to any destination file in the system, resulting in data loss and a denial of service due to the path traversal.

An issue was discovered in Icinga2 before v2.12.0-rc1. The prepare-dirs script (run as part of the icinga2 systemd service) executes chmod 2750 /run/icinga2/cmd. /run/icinga2 is under control of an unprivileged user by default. If /run/icinga2/cmd is a symlink, then it will by followed and arbitrary files can be changed to mode 2750 by the unprivileged icinga2 user.

An issue was discovered on Samsung mobile devices with O(8.x), P(9.0), and Q(10.0) software. The system area allows arbitrary file overwrites via a symlink attack. The Samsung ID is SVE-2020-17183 (June 2020).

Little Snitch version 4.5.1 and older changed ownership of a directory path controlled by the user. This allowed the user to escalate to root by linking the path to a directory containing code executed by root.

Digi ConnectPort X2e before 3.2.30.6 allows an attacker to escalate privileges from the python user to root via a symlink attack that uses chown, related to /etc/init.d/S50dropbear.sh and the /WEB/python/.ssh directory.

The decompress package before 4.2.1 for Node.js is vulnerable to Arbitrary File Write via ../ in an archive member, when a symlink is used, because of Directory Traversal.

Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial of service via abuse of a symlink.

file-roller: directory traversal via directory symlink pointing outside of the target directory

fr-archive-libarchive.c in GNOME file-roller through 3.36.1 allows Directory Traversal during extraction because it lacks a check of whether a file's parent is a symlink to a directory outside of the intended extraction location.

NCP Secure Enterprise Client before 10.15 r47589 allows a symbolic link attack on enumusb.reg via Support Assistant.

ESET Antivirus and Antispyware Module module 1553 through 1560 allows a user with limited access rights to create hard links in some ESET directories and then force the product to write through these links into files that would normally not be write-able by the user, thus achieving privilege escalation.

The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client. Standard users are able to write to this directory, and can write links to other directories on the machine. As the installer runs with SYSTEM privileges and follows these links, a user can cause the installer to delete files that otherwise cannot be deleted by the user.