CVE-2024-23897

Jenkins Command Line Interface (CLI) Path Traversal

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 100.0%

Published24 Jan 2024
Added to CISA KEV19 Aug 2024
Remediation due9 Sept 2024

Description

Jenkins 2.441 and earlier, LTS 2.426.2 and earlier does not disable a feature of its CLI command parser that replaces an '@' character followed by a file path in an argument with the file's contents, allowing unauthenticated attackers to read arbitrary files on the Jenkins controller file system.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Jenkins< 2.442 · < 2.426.3

Remediation

Fixed in

Jenkins≥ 2.442

Patch & vendor advisories

https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3314

References

http://packetstormsecurity.com/files/176839/Jenkins-2.441-LTS-2.426.3-CVE-2024-23897-Scanner.htmlThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/176840/Jenkins-2.441-LTS-2.426.3-Arbitrary-File-Read.htmlExploitThird Party AdvisoryVDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-23897US Government Resource
https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3314Vendor Advisory
https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/ExploitPress/Media Coverage
https://www.vicarius.io/vsociety/posts/the-anatomy-of-a-jenkins-vulnerability-cve-2024-23897-revealed-1ExploitThird Party Advisory
http://www.openwall.com/lists/oss-security/2024/01/24/6Mailing List

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2024-23897 being actively exploited?

Yes. CVE-2024-23897 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 19 Aug 2024. It has been used in ransomware campaigns.

How severe is CVE-2024-23897?

CVE-2024-23897 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 100.0% probability of exploitation.

Which products are affected by CVE-2024-23897?

Affected products include Jenkins.

How do I fix CVE-2024-23897?

Upgrade affected software to a fixed version, for example Jenkins 2.442 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-23897 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.