Patchfirst
CVE-2021-44529 KEVRansomwarePublic exploit Critical · 9.8 EPSS 99.1%

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

Ivanti · Endpoint Manager Cloud Service Appliance (EPM CSA)

Summary

A code injection flaw in Ivanti's Endpoint Manager Cloud Service Appliance (EPM CSA) lets an attacker run arbitrary code on the appliance with limited "nobody" permissions. No authentication or user interaction is required, and the attack can be launched over the network.

Official description · NVD

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

Breakdown
79.8 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
1/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited 2 years after disclosure. Public exploit code (Metasploit) was available 6 days before disclosure.

  1. Public exploit codeMetasploit6 days before
  2. Disclosedday 0
  3. First seen exploitedVulnCheck KEV evidence+2 yrs
  4. Added to CISA KEVknown ransomware use; EU database agrees+2 yrs

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order 2

Initial AccessTA0001

MITRE CTID mapping of the KEV entry · how it is exploited

This vulnerability is exploited after an adversary sends a maliciously crafted cookie to the client endpoint (/client/index.php) to exploit Ivanti systems that utilized a malicious version of the "csrf-magic", which creates a backdoor into an Ivanti system. An unauthorized user can then execute malicious code stored in the cookie via Ivanti's "nobody" user account.

MITRE CTID mapping of the KEV entry · primary impact

Detection

0 rules for this CVE · 166 general rules for its techniques

Rules for this CVE

0 that reference CVE-2021-44529 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

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What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

4 links, grouped by NVD tag (3 duplicates merged)
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