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CVE-2021-0218

Junos OS: Command injection vulnerability in license-check daemon

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 17.3R3-S9, 18.1R3-S11, 18.2R3-S6, 18.3R3-S4, 18.4R3-S6, and 1 more
None on Exploit-DB, Metasploit or GitHub

Summary

A command injection vulnerability in the license-check daemon of Juniper Networks Junos OS that may allow a locally authenticated attacker with low privileges to execute commands with root privilege. license-check is a daemon used to manage licenses in Junos OS. To update licenses, a user executes the command 'request system license update' via the CLI. An attacker with access to this CLI command may be able to exploit the vulnerability. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R1-S2, 20.2R2.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Juniper Networks Junos OS

    From 17.3 · fixed in 17.3R3-S9; From 18.1 · fixed in 18.1R3-S11; From 18.2 · fixed in 18.2R3-S6; From 18.3 · fixed in 18.3R3-S4; From 18.4 · fixed in 18.4R3-S6; From 19.2 · fixed in 19.2R3-S1

References 1

kb.juniper.net