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CVE-2025-59980

Junos OS: When a user with the name ftp or anonymous is configured unauthenticated filesystem access is allowed

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 22.4R3-S8, 23.2R2-S3, 23.4R2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

An Authentication Bypass by Primary Weakness in the FTP server of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to get limited read-write access to files on the device. When the FTP server is enabled and a user named "ftp" or "anonymous" is configured, that user can login without providing the configured password and then has read-write access to their home directory. This issue affects Junos OS:  • all versions before 22.4R3-S8, • 23.2 versions before 23.2R2-S3, • 23.4 versions before 23.4R2.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Juniper Networks Junos OS

    fixed in 22.4R3-S8; From 23.2 · fixed in 23.2R2-S3; From 23.4 · fixed in 23.4R2

References 1

supportportal.juniper.net