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CriticalCISA KEVExploited in the wildPublic exploit

Ivanti Sentry MICS Admin Portal Authentication Bypass

IdentifiersCVE-2023-38035CWE-306

CVE-2023-38035 is a critical authentication bypass vulnerability in Ivanti Sentry (formerly MobileIron Sentry) affecting supported versions 9.18, 9.17, and 9.16, as well as older releases, including 9.18.0 and below per the provided content. The flaw is caused by an insufficiently restrictive Apache HTTPD configuration protecting the MICS Admin Portal / System Manager Portal. As a result, an unauthenticated remote attacker can reach sensitive administrative API endpoints exposed through the portal, commonly on TCP port 8443, including MICS-related service paths such as /mics/services/* and /mics/services/configservice/*. Successful access bypasses intended authentication controls on the administrative interface and allows unauthorized interaction with configuration functionality. Multiple sources in the provided content state that this unauthorized access can be leveraged to make configuration changes to Sentry and the underlying operating system and may lead to OS command execution as root.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows unauthenticated access to the Ivanti Sentry administrative interface and sensitive configuration APIs. An attacker can make unauthorized configuration changes to the Sentry appliance and, according to the provided content, potentially to the underlying operating system. Reported downstream impact includes root-level OS command execution, full compromise of the Sentry instance, exposure of credentials and session tokens handled by the gateway, impersonation of legitimate users, access to protected backend resources, and possible denial of service. The content also states the vulnerability was exploited in the wild, including as a zero-day in 2023, and has been associated with significant compromise and data-breach risk.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, restrict access to the Sentry System Manager Portal / MICS administrative interface, especially TCP port 8443, to authorized administrators and trusted management networks only, and remove internet exposure where feasible. Increase monitoring for unexpected HTTP requests to MICS and related service endpoints, particularly /mics/services/, /mics/services/configservice/, /mics/services/MICSLogService*, and unexpected /services/* access. Review web interface and Tomcat access logs for signs of unauthenticated administrative API access. Because historic compromise may persist after patching, conduct a proactive compromise assessment on previously exposed systems.

Remediation

Patch, then assume compromise.

Upgrade Ivanti Sentry to a fixed release. The provided content identifies recommended fixed versions as 9.18.0-3, 9.17.0-3, and 9.16.0-3. Organizations should test and deploy the vendor-recommended update as quickly as possible. Because the vulnerability has been exploited in the wild and patching does not remediate prior compromise, remediation should also include post-patch threat hunting and incident response review of affected systems, including examination of relevant web and Tomcat logs such as /var/log/tomcat2/ for suspicious access to MICS and /services/ endpoints.
PUBLIC EXPLOITS

Exploits

2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.

VALID 2 / 2 TOTALView more in app
CVE-2023-38035-MobileIron-RCEMaturityPoCVerified exploit

This repository provides an operational exploit toolkit for CVE-2023-38035, a critical vulnerability in Ivanti MobileIron systems. The main entry point is the 'mics_hunter.sh' Bash script, which automates the process of discovering, assessing, and exploiting vulnerable MobileIron instances. It leverages the Shodan API to find potential targets, checks for required dependencies, and manages reverse shell payloads using either ncat or a multi_reverse.sh script. The exploitation itself is performed via 'hessian.py', a Python script that interacts with the vulnerable Hessian service endpoint on the target, allowing arbitrary command execution. The toolkit is designed for ease of use, with automated dependency checks and payload delivery, and is intended for penetration testing and educational purposes only. The repository structure is straightforward: 'mics_hunter.sh' (main automation and orchestration), 'hessian.py' (Hessian protocol exploit), 'README.md' (usage and credits), and 'LICENSE' (GPLv3).

mind2hexDisclosed Sep 5, 2023pythonbashnetwork
CVE-2023-38035MaturityPoCVerified exploit

This repository contains a Python proof-of-concept exploit for CVE-2023-38035, a critical unauthenticated command injection vulnerability in Ivanti Sentry. The exploit (CVE-2023-38035.py) targets the /mics/services/MICSLogService endpoint exposed over HTTPS on the Ivanti Sentry appliance. By sending a specially crafted Hessian request, the script allows an attacker to execute arbitrary shell commands as the root user on the target system without authentication. The README.md provides technical background, usage instructions, and example commands for downloading and executing a reverse shell payload. The exploit is operational, requiring only the target URL and a command to execute. The main attack vector is network-based, exploiting an exposed HTTPS service. The repository is structured with a single exploit script and a detailed README, and does not rely on any exploit framework.

horizon3aiDisclosed Aug 23, 2023pythonmarkdownnetwork
EXPOSURE SURFACE

Affected products & vendors

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VendorProductType
IvantiMobileiron Sentryapplication

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Detection signatures2

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