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[email protected]CVE-2021-21696

HistoryNov 04, 2021 - 5:15 p.m.

CVE-2021-21696

2021-11-0417:15:08

[email protected]

web.nvd.nist.gov

119

cve-2021-21696

jenkins

lts

code execution

security vulnerability

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.4 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.7%

JSON

Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.

Affected configurations

NVD

Node

jenkinsjenkinsRange≤2.303.2lts

jenkinsjenkinsRange≤2.318-

CPENameOperatorVersion
jenkins:jenkinsjenkinsle2.303.2
jenkins:jenkinsjenkinsle2.318

CPE	Name	Operator	Version
jenkins:jenkins	jenkins	le	2.303.2
jenkins:jenkins	jenkins	le	2.318

CNA Affected

[
  {
    "product": "Jenkins",
    "vendor": "Jenkins project",
    "versions": [
      {
        "lessThanOrEqual": "2.318",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "LTS 2.303.2",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]