CVE-2024-7593: Ivanti vTM Auth Bypass Vulnerability

CVE-2024-7593 Overview

CVE-2024-7593 is an authentication bypass vulnerability in Ivanti Virtual Traffic Manager (vTM) caused by an incorrect implementation of an authentication algorithm. A remote, unauthenticated attacker can bypass authentication of the administrative panel and gain full control over the affected appliance. The flaw is tracked as CWE-287: Improper Authentication and affects all Ivanti vTM releases other than 22.2R1 and 22.7R2. CISA added the vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, confirming exploitation activity against internet-exposed appliances.

Critical Impact
Unauthenticated attackers can reach the Ivanti vTM admin panel, create administrator accounts, and pivot to manipulate load-balanced traffic across protected backend services.

Affected Products

Ivanti Virtual Traffic Manager 22.2 (excluding 22.2R1)
Ivanti Virtual Traffic Manager 22.3, 22.3R2, 22.5R1, 22.6R1
Ivanti Virtual Traffic Manager 22.7R1 (fixed in 22.7R2)

Discovery Timeline

2024-08-13 - CVE-2024-7593 published to NVD
2024-08-13 - Ivanti releases security advisory and fixed builds 22.2R1 and 22.7R2
2026-05-14 - Last updated in NVD database

Technical Details for CVE-2024-7593

Vulnerability Analysis

Ivanti vTM is a software-based application delivery controller that handles load balancing, SSL termination, and traffic shaping for enterprise applications. The administrative interface authenticates operators before allowing configuration changes that affect routed traffic. CVE-2024-7593 stems from a defective implementation of the authentication algorithm used by the admin panel. The verification routine does not correctly validate credentials, allowing a remote attacker to satisfy the authentication check without supplying valid secrets. Successful exploitation grants the attacker the same administrative capabilities as a legitimate operator, including the ability to create persistent admin accounts and modify traffic policies.

Root Cause

The root cause is an incorrect implementation of the authentication algorithm that guards the management interface. Because the algorithm does not correctly compare or verify the authenticator presented by the client, requests that should be rejected are accepted as authenticated. This is a logic flaw in the authentication path rather than a memory corruption or injection issue, which is reflected in the CWE-287 classification.

Attack Vector

Exploitation occurs over the network against the Ivanti vTM management interface. No prior credentials, user interaction, or elevated privileges are required. An attacker who can reach the admin panel sends crafted authentication requests that the flawed algorithm accepts, then proceeds to administrative actions such as adding new users or altering load-balancing rules. Appliances with management interfaces exposed to untrusted networks are at highest risk. With an EPSS score in the 99th percentile and confirmed KEV listing, opportunistic scanning and exploitation against exposed instances should be expected.

No public proof-of-concept code is referenced in the advisory data. Refer to the Ivanti Security Advisory for CVE-2024-7593 for vendor-supplied technical details.

Detection Methods for CVE-2024-7593

Indicators of Compromise

Unexpected administrator accounts created in the Ivanti vTM user database, particularly accounts added outside of change-management windows.
Successful admin panel logins originating from external or otherwise unexpected source IP addresses.
Configuration changes to virtual servers, pools, or TrafficScript rules that do not map to authorized change tickets.
Outbound connections from the vTM appliance to unfamiliar hosts following an admin session.

Detection Strategies

Review vTM audit logs for authentication events that lack a corresponding credential prompt or that succeed from previously unseen user agents.
Alert on the creation, modification, or privilege change of administrative accounts on vTM appliances.
Compare current vTM configuration against a known-good baseline to identify unauthorized policy or routing changes.
Correlate admin panel access events with network firewall logs to identify management traffic from non-administrative subnets.

Monitoring Recommendations

Forward vTM system and audit logs to a centralized SIEM and retain them long enough to support retrospective hunts against the August 2024 disclosure window.
Monitor inbound connections to vTM admin ports and alert on any access from outside designated management networks.
Track CISA KEV catalog updates and cross-reference exposed Ivanti assets in vulnerability management tooling.

How to Mitigate CVE-2024-7593

Immediate Actions Required

Upgrade Ivanti vTM to a fixed release: 22.2R1, 22.3R3, 22.5R2, 22.6R2, or 22.7R2 as appropriate for your branch, per the Ivanti Security Advisory for CVE-2024-7593.
Remove direct internet exposure of the admin panel and restrict it to a dedicated management network.
Audit all vTM administrator accounts and rotate credentials for any account that cannot be verified as authorized.
Review configuration history and audit logs for unauthorized changes made on or after 2024-08-13.

Patch Information

Ivanti has released fixed builds that correct the authentication algorithm implementation. Administrators should apply the vendor-supplied patch matching their deployed branch and validate the upgrade by confirming the running version against the Ivanti Security Advisory for CVE-2024-7593. Because the vulnerability is listed in the CISA Known Exploited Vulnerabilities catalog, federal agencies must remediate within the KEV-mandated timeframe and other organizations should treat patching as urgent.

Workarounds

Bind the management interface to an internal-only IP address so that the admin panel is unreachable from untrusted networks, as described in the Ivanti advisory.
Restrict access to the admin port using host firewalls or upstream network ACLs that permit only known administrative source addresses.
Require VPN or bastion host access for all administrative sessions to the vTM appliance until patching is complete.

bash

# Example: restrict access to the Ivanti vTM admin panel using iptables
# Replace <ADMIN_SUBNET> with your management network and <ADMIN_PORT> with the configured admin port
iptables -A INPUT -p tcp --dport <ADMIN_PORT> -s <ADMIN_SUBNET> -j ACCEPT
iptables -A INPUT -p tcp --dport <ADMIN_PORT> -j DROP