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             AUSCERT External Security Bulletin Redistribution

 JSA11270 - 2022-01 Security Bulletin: Junos OS: A low privileged user can
            elevate their privileges to the ones of the highest
             privileged j-web user logged in (CVE-2022-22162)
                              13 January 2022


        AusCERT Security Bulletin Summary

Product:           Junos OS
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-22162  

Original Bulletin: 

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2022-01 Security Bulletin: Junos OS: A low privileged user can elevate their privileges to the ones of the highest privileged j-web user logged in (CVE-2022-22162)

Article ID  : JSA11270
Last Updated: 12 Jan 2022
Version     : 1.0

Product Affected:
This issue affects all versions of Junos OS.

A Generation of Error Message Containing Sensitive Information vulnerability in
the CLI of Juniper Networks Junos OS allows a locally authenticated attacker
with low privileges to elevate these to the level of any other user logged in
via J-Web at this time, potential leading to a full compromise of the device.

This issue affects Juniper Networks Junos OS:

  o All versions prior to 15.1R7-S11;
  o 18.3 versions prior to 18.3R3-S6;
  o 18.4 versions prior to 18.4R2-S9, 18.4R3-S10;
  o 19.1 versions prior to 19.1R2-S3, 19.1R3-S7;
  o 19.2 versions prior to 19.2R1-S8, 19.2R3-S4;
  o 19.3 versions prior to 19.3R3-S4;
  o 19.4 versions prior to 19.4R3-S6;
  o 20.1 versions prior to 20.1R3-S2;
  o 20.2 versions prior to 20.2R3-S3;
  o 20.3 versions prior to 20.3R3-S1;
  o 20.4 versions prior to 20.4R3-S1;
  o 21.1 versions prior to 21.1R2-S1, 21.1R3;
  o 21.2 versions prior to 21.2R1-S1, 21.2R2.

This issue can only be exploited if J-Web is configured with:

[system services web-management http]


[system services web-management https]

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was discovered during external security research.

This issue has been assigned CVE-2022-22162 .


The following software releases have been updated to resolve this specific
issue: 15.1R7-S11, 18.3R3-S6, 18.4R2-S9, 18.4R3-S10, 19.1R2-S3, 19.1R3-S7,
19.2R1-S8, 19.2R3-S4, 19.3R3-S4, 19.4R3-S6, 20.1R3-S2, 20.2R3-S3, 20.3R3-S1,
20.4R3-S1, 21.1R2-S1, 21.1R3, 21.2R1-S1, 21.2R2, 21.3R1, and all subsequent

This issue is being tracked as 1593200 .


There are no viable workarounds for this issue other than disabling J-Web.

To reduce the risk of exploitation of this issue, use access lists or firewall
filters to limit access to only trusted administrative networks, hosts and

Software releases or updates are available for download at https://
Modification History:
2022-01-12: Initial Publication.
CVSS Score:
7.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
Severity Level:
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."
The Juniper SIRT would like to acknowledge and thank Andy Coles of Microsoft
MSRC Vulnerabilities and Mitigations Team for responsibly reporting this issue.

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