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CVE-2023-42819

Path traversal in Jumpserver

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.6.5
1 proof of concept on GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

JumpServer is an open source bastion host. Logged-in users can access and modify the contents of any file on the system. A user can use the 'Job-Template' menu and create a playbook named 'test'. Get the playbook id from the detail page, like 'e0adabef-c38f-492d-bd92-832bacc3df5f'. An attacker can exploit the directory traversal flaw using the provided URL to access and retrieve the contents of the file. `https://jumpserver-ip/api/v1/ops/playbook/e0adabef-c38f-492d-bd92-832bacc3df5f/file/?key=../../../../../../../etc/passwd` a similar method to modify the file content is also present. This issue has been addressed in version 3.6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • jumpserver jumpserver

    From 3.0.0 · fixed in 3.6.5

References 3

GitHub · jumpserver/jumpserver

GitHub · C1ph3rX13/CVE-2023-42819