CVE-2024-23897
Jenkins Command Line Interface (CLI) Path Traversal Vulnerability
Jenkins Command Line Interface (CLI)
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.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 19 August 2024. US federal agencies were required to remediate it by 9 September 2024. CISA records this vulnerability as known to be used in ransomware campaigns.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 100%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2024-23897 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2024-23897.
What does CVE-2024-23897 affect?
CVE-2024-23897 affects Jenkins Command Line Interface (CLI). 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.
How severe is CVE-2024-23897?
CVE-2024-23897 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 100%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 9 September 2024.
How should organisations respond to CVE-2024-23897?
Apply the vendor patch for Jenkins Command Line Interface (CLI) as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.