CVE-2017-17482 : Vulnerability Insights and Analysis

A vulnerability has been identified in OpenVMS versions V8.4-2L2 on Alpha and V8.4-2L1 on IA64, as well as VAX/VMS 4.0 and subsequent versions. This vulnerability could lead to a buffer overflow and local privilege escalation.

Understanding CVE-2017-17482

This CVE describes a vulnerability in OpenVMS that could allow a non-privileged user to escalate their privileges through a specially crafted command.

What is CVE-2017-17482?

The vulnerability arises from a malformed DCL command table in OpenVMS versions V8.4-2L2 on Alpha, V8.4-2L1 on IA64, and VAX/VMS 4.0 onwards. It enables a buffer overflow, potentially leading to local privilege escalation.

The Impact of CVE-2017-17482

Exploitable on VAX and Alpha systems for privilege escalation
May cause a process crash on IA64
Affects software regardless of the distributor

Technical Details of CVE-2017-17482

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue allows a non-privileged user to execute a specially crafted command, leading to a buffer overflow and potential privilege escalation.

Affected Systems and Versions

OpenVMS versions V8.4-2L2 on Alpha
OpenVMS versions V8.4-2L1 on IA64
VAX/VMS 4.0 and later versions

Exploitation Mechanism

The vulnerability is exploited by inputting a malformed DCL command table, triggering a buffer overflow and enabling the privilege escalation.

Mitigation and Prevention

Protecting systems from CVE-2017-17482 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor patches or updates promptly
Monitor system logs for any unusual activities
Restrict non-privileged user access to critical commands

Long-Term Security Practices

Regularly update and patch the system to address vulnerabilities
Implement least privilege access controls to limit potential damage

Patching and Updates

Check for security advisories from the vendor
Apply recommended patches to fix the vulnerability