CVE-2021-44529

CRITICAL KEV RANSOMWARE NUCLEI

Ivanti Endpoint Manager Cloud Services Appliance < 4.5 - Unauthenticated Remote Code Execution

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-44529 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added March 25, 2024, with confirmed use in ransomware campaigns. EIP tracks 4 public exploits from researchers including d7x, jkana, jax7sec, including a Metasploit module exploits/linux/http/ivanti_csa_unauth_rce_cve_2021_44529. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit leverages a remote code execution vulnerability in Ivanti Endpoint Manager 4.6 by injecting a base64-encoded command into a cookie parameter. The payload is executed server-side, and the output is retrieved via a specific HTML tag in the response.

Description

A code injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated user to execute arbitrary code with limited permissions (nobody).

Exploits (4)

exploitdb WORKING POC
by d7x · textremotemultiple
https://www.exploit-db.com/exploits/50833

This exploit leverages a remote code execution vulnerability in Ivanti Endpoint Manager 4.6 by injecting a base64-encoded command into a cookie parameter. The payload is executed server-side, and the output is retrieved via a specific HTML tag in the response.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Ivanti Endpoint Manager 4.6
No auth needed
Prerequisites: Network access to the target server · Vulnerable version of Ivanti Endpoint Manager
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 5 stars
by jkana · remote
https://github.com/jkana/CVE-2021-44529

This exploit leverages a command injection vulnerability in Ivanti Cloud Service Appliance (CSA) by encoding a malicious command in a base64 cookie, which is then executed on the target server. The response is parsed to extract the command output.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Ivanti Cloud Service Appliance (CSA) 4.6, 4.5 (EOF Aug 2021)
No auth needed
Prerequisites: Target URL must be accessible · Python 3 environment with 'requests' library
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 3 stars
by jax7sec · remote
https://github.com/jax7sec/CVE-2021-44529

This PoC exploits a code injection vulnerability in Ivanti EPM Cloud Services Appliance (CSA) by encoding a system command in base64 and passing it via a cookie, allowing unauthenticated arbitrary code execution with limited privileges (nobody). The script sends a crafted request and extracts the command output from the response.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Ivanti EPM Cloud Services Appliance (CSA)
No auth needed
Prerequisites: Network access to the target · Python environment with requests library
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
by Jakub Kramarz · rubypocunix
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/ivanti_csa_unauth_rce_cve_2021_44529.rb

This Metasploit module exploits a command injection vulnerability in Ivanti Cloud Services Appliance (CSA) before version 4.6.0-512. It leverages a cookie-based code injection to execute arbitrary commands as the 'nobody' user.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Ivanti Cloud Services Appliance (CSA) before 4.6.0-512
No auth needed
Prerequisites: Network access to the target · Target running vulnerable version of Ivanti CSA
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Ivanti EPM Cloud Services Appliance Code Injection
CRITICALby duty_1g,phyr3wall,Tirtha
Shodan: title:"LANDesk(R) Cloud Services Appliance" || http.title:"landesk(r) cloud services appliance"
FOFA: title="landesk(r) cloud services appliance"

Scores

CVSS v3 9.8
EPSS 0.9446
EPSS Percentile 100.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable yes
Technical Impact total

Details

CISA KEV 2024-03-25
VulnCheck KEV 2024-02-29
InTheWild.io 2024-03-25
ENISA EUVD EUVD-2021-31360
Ransomware Use Confirmed
CWE
CWE-94
Status published
Products (2)
ivanti/endpoint_manager_cloud_services_appliance 4.6
ivanti/endpoint_manager_cloud_services_appliance < 4.5
Published Dec 08, 2021
KEV Added Mar 25, 2024
Tracked Since Feb 18, 2026