CVE-2021-42562Public exploitNetwork attack vector

Administrator-only configuration access via unchecked REST authorization

Published Jan 12, 2022 · Updated Aug 4, 2024

Improper access control in MITRE CALDERA 2.8.1 allows remote authenticated users to read and modify administrator-only configuration. The /api/rest configuration handler accepts direct configuration requests from non-admin sessions without enforcing administrator authorization. Valid user credentials are required; exposed data includes API keys and encryption settings, and writable requirements enable chained command execution.

CVSS severity8.1
High
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in MITRE CALDERA 2.8.1 allows remote authenticated users to read and modify administrator-only configuration. The /api/rest configuration handler accepts direct configuration requests from non-admin sessions without enforcing administrator authorization. Valid user credentials are required; exposed data includes API keys and encryption settings, and writable requirements enable chained command execution.

The record

CVE
CVE-2021-42562
Published
Jan 12, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
5.5NVDAV:N/AC:L/Au:S/C:P/I:P/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1078Valid Accounts

Public exploit references

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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