1. Cleus
  2. Zero-days
  3. CVE-2024-23897
Exploited in the wildUsed by ransomwareVPNs, firewalls & gatewaysWork IT

CVE-2024-23897 Jenkins Jenkins Command Line Interface (CLI): file path flaw

In plain words: The program can be tricked into reading or writing files outside the folder it should stay in. Leaks files such as passwords and settings, or overwrites important ones.

Confirmed exploited by CISA on · US federal patch deadline Sep 9, 2024

What to do

  1. Install Jenkins's security update for Jenkins Command Line Interface (CLI). If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Patch edge devices first — attackers often start scanning for them within hours of a fix.
  3. Never expose the device's admin page to the internet.
  4. After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.

Read Jenkins's advisory ↗

Who is affected

Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.

The details

Official name
Jenkins Command Line Interface (CLI) Path Traversal Vulnerability
Product
Jenkins Jenkins Command Line Interface (CLI)
CISA description
Jenkins Command Line Interface (CLI) contains a path traversal vulnerability that allows attackers limited read access to certain files, which can lead to code execution.
Type of flaw
File path flaw (CWE-27)
Confirmed exploited
Aug 19, 2024 — known to be used in ransomware attacks
US federal patch deadline
Sep 9, 2024

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Answering about CVE-2024-23897 ·

Questions about CVE-2024-23897

Is CVE-2024-23897 being exploited?

Yes. CISA added CVE-2024-23897 to its Known Exploited Vulnerabilities catalog on Aug 19, 2024, which means there is reliable evidence of real-world attacks, including by ransomware groups.

How do I fix CVE-2024-23897?

Install Jenkins's security update for Jenkins Command Line Interface (CLI). If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.

Am I affected by CVE-2024-23897?

Only if you use Jenkins Jenkins Command Line Interface (CLI). Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

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