CVE-2022-35871Known exploitationNetwork attack vector

Unauthenticated code execution via unguarded Python invocation

Published Jul 25, 2022 · Updated Aug 3, 2024

Missing authentication in Ignition 8.1.15 allows remote attackers to execute arbitrary code through the AD SSO implementation. The authenticateAdSso method permits Python code execution before authenticating the requesting session. Exploitation requires classic Active Directory authentication with SSO enabled and grants the Gateway service account's privileges on the host.

CVSS severity8.1
High
EPSS probability39.19%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Ignition 8.1.15 allows remote attackers to execute arbitrary code through the AD SSO implementation. The authenticateAdSso method permits Python code execution before authenticating the requesting session. Exploitation requires classic Active Directory authentication with SSO enabled and grants the Gateway service account's privileges on the host.

The record

CVE
CVE-2022-35871
Published
Jul 25, 2022
Updated
Aug 3, 2024
Vendor
Inductive Automation
Product
Ignition
Classifications
CWE-306, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2022Exploitation reportedPwn2Own Miami 2022 demonstration
  2. Jul 25, 2022CVE publishedPublication date reported by the CVE source.
  3. Aug 3, 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=8.1.15 (b2022030114)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Inductive Automation · Ignitionversion=8.1.15 (b2022030114)

Published CVSS scores

8.1Zero Day InitiativeCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1059.006Command and Scripting Interpreter: Python

Public exploit references

No public exploit references are available in this record.

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Reported exploitation

Technologies

Your stack

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Your stack

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