CVE-2020-1885 : What You Need to Know
Discover how Oculus Desktop's CVE-2020-1885 vulnerability lets local users gain privileges through arbitrary file writing. Learn about impacts, affected systems, and mitigation steps.
A vulnerability in Oculus Desktop prior to version 1.44.0.328549 allows local users to escalate privileges through a file writing issue.
Understanding CVE-2020-1885
This CVE involves an elevation of privilege vulnerability affecting Oculus Desktop.
What is CVE-2020-1885?
The vulnerability in Oculus Desktop before version 1.44.0.328549 enables local users to write to arbitrary files, leading to gaining elevated privileges through specific vectors.
The Impact of CVE-2020-1885
Exploitation of this vulnerability could result in a local user gaining escalated privileges by manipulating file writing actions.
Technical Details of CVE-2020-1885
This section delves into the technical aspects of the CVE.
Vulnerability Description
The issue arises from a privileged OVRRedir.exe process within Oculus Desktop writing to an unprivileged file, enabling local users to write to arbitrary files.
Affected Systems and Versions
- Product: Oculus Desktop
- Vendor: Facebook
- Versions Affected: 1.44.0.328549
Exploitation Mechanism
By utilizing a hard link to a log file, local users can exploit the vulnerability to write to arbitrary files and elevate their privileges.
Mitigation and Prevention
Protective measures and actions against CVE-2020-1885.
Immediate Steps to Take
- Update Oculus Desktop to version 1.44.0.328549 or later to mitigate the vulnerability.
- Regularly monitor and restrict file write permissions for privileged processes.
Long-Term Security Practices
- Employ the principle of least privilege to limit the capabilities of user accounts.
- Implement stringent file system access controls to prevent unauthorized file modifications.
Patching and Updates
- Apply security patches promptly to address known vulnerabilities and enhance system security.