Jenkins up to LTS 2.303.2/2.318 Agent-to-Controller improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Jenkins up to LTS 2.303.2/2.318. The affected element is an unknown function of the component Agent-to-Controller Handler. The manipulation leads to improper authorization. This vulnerability is documented as CVE-2021-21693. There is not any exploit available.

Detailsinfo

A vulnerability was found in Jenkins up to LTS 2.303.2/2.318 (Continuous Integration Software) and classified as critical. This issue affects an unknown code of the component Agent-to-Controller Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.

The weakness was released 11/04/2021. It is possible to read the advisory at jenkins.io. The identification of this vulnerability is CVE-2021-21693 since 01/04/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-3269). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2021 🔍
11/04/2021 +304 days 🔍
11/04/2021 +0 days 🔍
05/16/2026 +1654 days 🔍

Sourcesinfo

Advisory: jenkins.io
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21693 (🔍)
GCVE (CVE): GCVE-0-2021-21693
GCVE (VulDB): GCVE-100-186071
EUVD: 🔍

Entryinfo

Created: 11/04/2021 20:27
Updated: 05/16/2026 16:25
Changes: 11/04/2021 20:27 (37), 11/09/2021 19:20 (2), 11/09/2021 19:27 (1), 05/16/2026 16:25 (15)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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