CVE-2019-3750 : What You Need to Know
Learn about CVE-2019-3750 affecting Dell Command Update versions prior to 3.1, allowing arbitrary file deletion. Find mitigation steps and long-term security practices.
Dell Command Update versions prior to 3.1 have a security flaw allowing arbitrary file deletion by creating a symlink. This vulnerability stems from incorrect permissions in the Temp directory.
Understanding CVE-2019-3750
Dell Command Update (DCU) vulnerability with potential file deletion exploit.
What is CVE-2019-3750?
The security flaw in Dell Command Update (DCU) versions before 3.1 enables an authenticated user to delete specific files by manipulating symlinks in the Temp directory.
The Impact of CVE-2019-3750
The vulnerability poses a medium risk with a CVSS base score of 5.6, allowing for high availability impact through arbitrary file deletion.
Technical Details of CVE-2019-3750
Details on the vulnerability affecting Dell Command Update.
Vulnerability Description
The flaw in versions prior to 3.1 allows a local authenticated user to delete files by creating a symlink from "Temp\IC\ICDebugLog.txt" to a targeted file due to incorrect Temp directory permissions.
Affected Systems and Versions
- Product: Dell Command Update (DCU)
- Vendor: Dell
- Versions Affected: < 3.1
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: Low
- User Interaction: Required
- Scope: Unchanged
- Exploitation Impact: High availability
Mitigation and Prevention
Steps to mitigate and prevent the CVE-2019-3750 vulnerability.
Immediate Steps to Take
- Upgrade Dell Command Update to version 3.1 or higher.
- Monitor and restrict access to the Temp directory.
Long-Term Security Practices
- Regularly review and adjust file permissions.
- Implement least privilege access controls.
Patching and Updates
- Apply security patches and updates provided by Dell to address the vulnerability.