CVE DatabaseCVE-2024-8963

Updated 2026-06-17한국어 권고문 →

CVE-2024-89639.1/CRITICALCISA KEVCWE-22CWE-22

Ivanti CSA (Cloud Services Appliance) Path Traversal and Authentication Bypass Vulnerability (CVE-2024-8963) Urgent Security Advisory

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Affected Vendors

ivanti

Affected Components

cloud services appliance, csa

Published Date

2024-09-19

CVSS v3.1

9.1

CRITICAL

EPSS (30d)

98.6%

FIRST.org

CISA KEV

Exploited

NVD Source ↗

Executive & SecOps Summary

SECOPS ASSESSMENT

Affected Scope

Ivanti Cloud Services Appliance (CSA) versions prior to 4.6 Patch 519

Impact

Unauthenticated remote attackers can bypass authentication via path traversal to access restricted administrative endpoints, potentially leading to Remote Code Execution (RCE) when chained with other vulnerabilities

Mitigation

Organizations utilizing Ivanti CSA 4.6 must immediately apply Patch 519 or migrate to the actively supported CSA 5.0, as the 4.6 branch has reached End-of-Life (EOL)

Affected Products & Version Scope

All Ivanti Cloud Services Appliance (CSA) 4.6 versions prior to Patch 519 (Note: CSA 4.6 is End-of-Life, making migration to CSA 5.0 highly critical)

Remediation & Live Workaround Commands

PATCH & WORKAROUND

1. Official Patch & Version Upgrade Commands

If you must temporarily maintain CSA 4.6, immediately apply Patch 519. However, since CSA 4.6 is EOL, migrating to CSA 5.0 is the recommended long-term solution. Use the following commands in the CSA CLI to update packages:

bash

# Clean yum cache and apply the latest security updates
# Note: Ensure a VM snapshot is taken prior to execution.

sudo /usr/bin/yum clean all
sudo /usr/bin/yum update -y

# Verify the installed package versions
rpm -qa | grep -i csa

2. Temporary Workaround & Hardening Configuration

If patching cannot be performed immediately, restrict access to the CSA administrative interface using an external firewall or a reverse proxy like Nginx to enforce strict IP-based Access Control Lists (ACLs).

nginx

# Example Nginx configuration to restrict administrative access and block traversal patterns
server {
    listen 443 ssl;
    server_name csa.company.local;

    # Restrict access to administrative endpoints
    location /gs/ {
        allow 10.0.0.0/8; # Trusted internal admin subnet
        deny all;
        proxy_pass https://internal_csa_backend;
    }

    # Block directory traversal attempts
    if ($request_uri ~* '(\.\./|\.\.\\)') {
        return 400;
    }
}

3. Log Audit & IoC Verification Commands

Run the following script on the CSA appliance to inspect web server logs for potential path traversal patterns and unauthorized access attempts.

bash

#!/bin/bash
# Script to scan Ivanti CSA logs for CVE-2024-8963 exploitation attempts

LOG_DIR='/var/log/httpd'
SEARCH_PATTERN='(\.\./|\.\.\\|/gs/)'

echo '[+] Scanning logs for suspicious path traversal patterns...'
if [ -d '$LOG_DIR' ]; then
    egrep -ri '$SEARCH_PATTERN' '$LOG_DIR' | head -n 50
else
    echo '[-] Log directory not found.'
fi

Interactive SecOps Remediation Checklist

0/4 (0%)

Recommended Security Control & Mitigation Partner

NordLayer / Zero-Trust Network Access

Due to active exploitation in the wild, immediately apply Patch 519 to Ivanti CSA 4.6 or upgrade to CSA 5.0.

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Technical Root Cause & Exploitation Mechanics

1. Vulnerability Overview & Root Cause

This vulnerability (CVE-2024-8963) is a critical Path Traversal (CWE-22) flaw identified in the web interface of Ivanti Cloud Services Appliance (CSA) 4.6. The root cause lies in insufficient input validation and improper normalization of incoming HTTP request URIs. This allows remote, unauthenticated attackers to bypass access control checks and reach restricted internal application logic.

2. Exploitation Mechanics & Attack Scenario

An attacker exploits this vulnerability by sending crafted HTTP requests containing directory traversal sequences (such as ../) to the CSA web server. Because the application fails to properly sanitize these sequences before routing the request, the security filters are bypassed, granting the attacker access to administrative APIs and configuration scripts. In-the-wild exploitation has demonstrated that threat actors are actively chaining this vulnerability with local privilege escalation and command injection flaws to achieve full OS-level compromise with root privileges.

3. Infrastructure & Business Impact

Ivanti CSA serves as a critical gateway facilitating secure communication between external clients and internal corporate networks. A compromise of this appliance allows attackers to establish a persistent foothold within the enterprise perimeter. Given its inclusion in the CISA KEV catalog and an EPSS score of 0.9861, this vulnerability represents an immediate threat that could lead to lateral movement, data exfiltration, and full-scale network compromise.

Official Vendor Advisories & References

NVD Original English Description

Path Traversal in the Ivanti CSA before 4.6 Patch 519 allows a remote unauthenticated attacker to access restricted functionality.

https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-CSA-4-6-Cloud-Services-Appliance-CVE-2024-8963

Source: 3c1d8aa1-5a33-4ea4-8992-aadd6440af75 · Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-8963

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 · US Government Resource

Frequently Asked SecOps Questions (CVE-2024-8963)

FAQ

Q1. How critical is CVE-2024-8963 and is it actively exploited in the wild?

CVE-2024-8963 is rated CVSS 9.1 (CRITICAL) with a 30-day EPSS exploitation probability of 98.6%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.

Q2. Which vendors and products are affected by CVE-2024-8963?

Primary impacted vendors include ivanti across cloud services appliance, csa. Scope summary: All Ivanti Cloud Services Appliance (CSA) 4.6 versions prior to Patch 519 (Note: CSA 4.6 is End-of-Life, making migration to CSA 5.0 highly critical)

Q3. What temporary mitigations or workarounds exist for CVE-2024-8963 before patching?

[Mitigation] Organizations utilizing Ivanti CSA 4.6 must immediately apply Patch 519 or migrate to the actively supported CSA 5.0, as the 4.6 branch has reached End-of-Life (EOL) Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.

SECOPS WORKBENCH INTEGRATION