CVE-2021-36203Network attack vector

Unauthenticated file-path discovery via internal request forgery

Published Apr 22, 2022 · Updated Sep 17, 2024

SSRF in Johnson Controls SCT and SCT Pro before 14.2.2 allows remote attackers to probe for files or paths through crafted requests. The affected request-processing locus is undisclosed; specially crafted input causes the product to forge an internal request and reveal whether a named file or path exists. No authentication or user interaction is required, and the disclosed consequence is limited to internal request forgery and file-or-path discovery.

CVSS severity5.3
Medium
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Johnson Controls SCT and SCT Pro before 14.2.2 allows remote attackers to probe for files or paths through crafted requests. The affected request-processing locus is undisclosed; specially crafted input causes the product to forge an internal request and reveal whether a named file or path exists. No authentication or user interaction is required, and the disclosed consequence is limited to internal request forgery and file-or-path discovery.

The record

CVE
CVE-2021-36203
Published
Apr 22, 2022
Updated
Sep 17, 2024
Vendor
Johnson Controls
Product
System Configuration Tool Pro (SCT Pro)
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All <14.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Johnson Controls · System Configuration Tool Pro (SCT Pro)version=All <14.2.2
Johnson Controls · System Configuration Tool (SCT)version=All <14.2.2

Published CVSS scores

6.4NVDAV:N/AC:L/Au:N/C:P/I:P/A:N
5.3Johnson ControlsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
9.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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