NN-2022:2-01

Authenticated RCE on logo report upload in Guardian/CMC before 22.0.0

Last update: 2024-09-19

Advisory ID	NN-2022:2-01
Topic	Authenticated RCE on logo report upload in Guardian/CMC before 22.0.0
CWE Impact	CWE-20: Improper Input Validation
Issue date	2022-02-14
Affects	Guardian, CMC < v22.0.0
CVE Name(s)	CVE-2022-0550
CVSS Details	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Score	8.6 (CVSS v4.0) 7.2 (CVSS v3.1)
CVE Risk Level	High (CVSS v4.0) High (CVSS v3.1)
Risk Level for Nozomi customers	Medium

Summary

Improper Input Validation vulnerability in custom report logo upload in Nozomi Networks Guardian and CMC allows an authenticated attacker with admin or report manager roles to execute unattended commands on the appliance using web server user privileges.

Impact

Users with admin or report manager roles can upload a custom image to be used as logo in the header of the reports generated by Nozomi Networks Guardian and CMC. However, an improper validation is performed allowing the users to execute command remotly on the appliance, leveraging the privileges of the web server.

Affected Products

Guardian, CMC < v22.0.0

Workarounds and Mitigations

Use internal firewall features to limit management interface access and review users allowed to manage reports.

Solutions

Upgrade to v22.0.0.

Modification History

2022-02-14: Initial revision

2023-09-04: Minor updates to format and metadata to improve the CSAF implementation

2023-11-13: Migrated to CSAF VEX format

2023-11-16: CSAF vers improvements

2024-05-20: Added CVSS v4.0 scoring where applicable

2024-09-19: Revised the CVSS scoring

Acknowledgements

We thank the following parties for their efforts:

SECURA B.V. for finding this bug during a scheduled VAPT testing session

Contact

Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com.
More contact details on the PSIRT page.