CVE-2023-43496 json
Jenkins temporary plugin file created with insecure permissions
published 2023-09-20 3 y ago modified 2026-09-08 2 mo ago also BIT-jenkins-2023-43496 , EUVD-2023-2426 , GHSA-55wp-3pq4-w8p9
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
Jenkins 2.423 and earlier, LTS 2.414.1 and earlier creates a temporary file in the system temporary directory with the default permissions for newly created files when installing a plugin from a URL, potentially allowing attackers with access to the system temporary directory to replace the file before it is installed in Jenkins, potentially resulting in arbitrary code execution.
Patch / fix
- maven org.jenkins-ci.main:jenkins-core 2.414.2, 2.424
- bitnami jenkins 2.424.0
- Jenkins Project Jenkins 2.424
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2023-43496 updated cvss 7.0
jenkins: Temporary plugin file created with insecure permissions
-
Red Hat OpenShift Developer Tools and Services jenkins Red Hat OpenShift Container Platform 3.11 jenkins Red Hat OpenShift Container Platform 4 jenkinsaffected: no fix available
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.main:jenkins-core | >=2.50, <2.414.2 >=2.415, <2.424 |
2.414.2 2.424 |
| bitnami | jenkins | <2.424.0 |
2.424.0 |
Affected products
- Jenkins Project Jenkins
Classification
- Weakness
-
- CWE-276 Incorrect Default Permissions
- Technology feeds
References
-
github.com
/jenkinsci/jenkins/commit/df7c4ccda8976c06bf31b8fb9938f26fc38501ca
web
-
jenkins.io
/security/advisory/2023-09-20/#SECURITY-3072
vendor-advisory, web, advisory
-
openwall.com
/lists/oss-security/2023/09/20/5
web, mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-43496
advisory, web
Sources
- CVE List CVE-2023-43496
- GitHub Advisory GHSA-55wp-3pq4-w8p9
- NVD CVE-2023-43496
- OSV BIT-jenkins-2023-43496
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