SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-44529

Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) Code Injection Vulnerability

KEVCRITICAL 9.8EPSS 99.1%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 April 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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).

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
99.11% probability · 100th percentile
CISA KEV
Listed 25 March 2024 · due 15 April 2024 · used in ransomware campaigns
Weakness
CWE-94
Affected
ivanti/endpoint manager cloud services appliance
Source
support@hackerone.com

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://forums.ivanti.com/s/article/SA-2021-12-02?language=en_US; https://nvd.nist.gov/vuln/detail/CVE-2021-44529

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.