CVE-2021-21654Network attack vector

Authenticated outbound connections via unchecked test endpoints

Published May 11, 2021 · Updated Aug 3, 2024

Missing authorization in Jenkins Project P4 Plugin 1.11.4 and earlier allows remote authenticated users to initiate Perforce connections. The doTestConnection methods in P4PasswordImpl and P4TicketImpl accept a caller-supplied server, username, and password without checking Jenkins.ADMINISTER. Overall/Read access is sufficient, and the controller attempts the supplied credentials against the specified Perforce server.

CVSS severity4.3
Medium
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Jenkins Project P4 Plugin 1.11.4 and earlier allows remote authenticated users to initiate Perforce connections. The doTestConnection methods in P4PasswordImpl and P4TicketImpl accept a caller-supplied server, username, and password without checking Jenkins.ADMINISTER. Overall/Read access is sufficient, and the controller attempts the supplied credentials against the specified Perforce server.

The record

CVE
CVE-2021-21654
Published
May 11, 2021
Updated
Aug 3, 2024
Vendor
Jenkins Project
Product
P4 Plugin
Classifications
CWE-862, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2021CVE publishedPublication date reported by the CVE source.
  2. 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=unspecified <=1.11.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · P4 Pluginversion=unspecified <=1.11.4

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:N/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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