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The CVE-2025-46636 vulnerability exists within Dell Encryption software in versions prior to 11.12.1. It is classified as an Improper Link Resolution Before File Access flaw, commonly known as a link following or symlink vulnerability. The core technical failure is that the software does not securely validate and resolve symbolic links (symlinks) or NTFS junctions before performing file operations. When the application, running with certain privileges, needs to access or modify a file, it uses a path that can be influenced by a local attacker. A low-privileged user with local shell access can create a malicious symlink in a directory where they have write permissions. This symlink is crafted to point to a critical system file or a file protected by the encryption software. The Dell Encryption process, when performing its intended functions such as reading configuration or writing encrypted data, will dereference this attacker-controlled link. Instead of accessing the intended legitimate file, the software follows the symlink to the attacker-specified target. This allows the attacker to redirect read or write operations to sensitive locations they normally cannot access. The primary exploitation result is information tampering, where an attacker could corrupt, modify, or overwrite critical files. This could lead to a denial of service for the encryption service, corruption of encrypted volumes, or a bypass of security policies. The attack requires local access, meaning the attacker must already have a user account or some form of shell on the target system. However, due to the low privilege requirement, even a restricted account can potentially exploit this to escalate its influence or damage system integrity. The vulnerability stems from insecure file path handling routines within the application’s codebase that trust the filesystem namespace without sufficient checks.
Platform: Dell Encryption
Version: Before 11.12.1
Vulnerability: Link Following Vulnerability
Severity: Medium
date: 12/09/2025
Prediction: Patch 11.12.1
What Undercode Say:
Analytics
Check for existing symbolic links in common directories
find /etc /var -type l -ls 2>/dev/null
Verify installed software version
rpm -qa | grep -i dell-encryption
Example symlink creation (attack simulation)
ln -s /etc/shadow /tmp/legitimate.log
Check file access patterns and ownership
ls -la /path/to/dell/data/
How Exploit:
Create malicious symlink targeting critical file. Wait for Dell Encryption service to access manipulated path. Redirect file operation to achieve tampering.
Protection from this CVE
Update to version 11.12.1. Implement strict file permission policies. Audit and sanitize symlinks in application directories.
Impact:
Information tampering. Potential encryption bypass. System file corruption.
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Sources:
Reported By: nvd.nist.gov
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