High severity · published Sep 20, 2023
CVE-2023-43496
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…
8.8
CVSS
1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JE
Jenkins · Jenkins
before 2.414.2; before 2.424 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43496
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-43496
Mailing List
http://www.openwall.com/lists/oss-security/2023/09/20/5
Vendor Advisory
https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3072
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