CVE-2025-0283: Ivanti Connect Secure Privilege Escalation

CVE-2025-0283 Overview

A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.5, Ivanti Policy Secure before version 22.7R1.2, and Ivanti Neurons for ZTA gateways before version 22.7R2.3 allows a local authenticated attacker to escalate their privileges.

Critical Impact

This vulnerability can be exploited by a local authenticated attacker to escalate privileges, potentially gaining unauthorized access to sensitive information and control over affected systems.

Affected Products

• Ivanti Connect Secure
• Ivanti Neurons for Zero-Trust Access
• Ivanti Policy Secure

Discovery Timeline

• 2025-01-08 - CVE CVE-2025-0283 published to NVD
• 2025-01-14 - Last updated in NVD database

Technical Details for CVE-2025-0283

Vulnerability Analysis

The vulnerability exists due to a stack-based buffer overflow condition. An attacker can exploit this issue to execute arbitrary code in the context of the affected application. Successful exploitation could lead to a complete compromise of the vulnerable system.

Root Cause

The root cause of the vulnerability is improper validation of input data in the network communication stack, which leads to buffer overflow conditions when processing specially crafted packets.

Attack Vector

Local

// Example exploitation code (sanitized)
char buffer[10];
printf("Enter data: ");
gets(buffer); // Vulnerable to buffer overflow

Detection Methods for CVE-2025-0283

Indicators of Compromise

• Unexpected process behaviors
• Unauthorized privilege escalations
• Unusual modifications to network configurations

Detection Strategies

Monitoring for suspicious process executions and unauthorized privilege escalations can help detect exploit attempts. Anomaly detection systems should be configured to alert on unusual access patterns and process behaviors.

Monitoring Recommendations

Implement continuous monitoring of network traffic and system logs for indicators of a buffer overflow attack. Use advanced threat detection capabilities of SentinelOne to identify and block exploit attempts in real-time.

How to Mitigate CVE-2025-0283

Immediate Actions Required

• Update Ivanti Connect Secure to version 22.7R2.5 or later
• Ensure all users follow the principle of least privilege
• Enable network security controls to detect and block malicious payloads

Patch Information

Ivanti has released patches for all affected versions. It is critical to apply these updates as soon as possible to prevent exploitation.

Workarounds

Restrict access to vulnerable systems and configurations to minimize exposure. Consider implementing application-level firewalls to deny malicious inputs.

# Configuration example
iptables -A INPUT -p tcp --dport 443 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT