High severity · published Sep 20, 2023
CVE-2023-43497
In Jenkins 2.423 and earlier, LTS 2.414.1 and earlier, processing file uploads using the Stapler web framework creates temporary files in the default system temporary directory…
8.1
CVSS
1%
EPSS
No
On KEV
Description
In Jenkins 2.423 and earlier, LTS 2.414.1 and earlier, processing file uploads using the Stapler web framework creates temporary files in the default system temporary directory with the default permissions for newly created files, potentially allowing attackers with access to the Jenkins controller file system to read and write the files before they are used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% 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-2023-43497
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-43497
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-3073
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