NN-2023:5-01

Information disclosure via the debug function in assertions in Guardian/CMC before 22.6.2

Last update: 2024-05-20

Advisory IDNN-2023:5-01
TopicInformation disclosure via the debug function in assertions in Guardian/CMC before 22.6.2
CWE ImpactCWE-863: Incorrect Authorization
Issue date2023-08-09
AffectsGuardian, CMC < v22.6.2
CVE Name(s)CVE-2023-24471
CVSS DetailsCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS Score7.1 (CVSS v4.0)
6.5 (CVSS v3.1)
CVE Risk LevelHigh (CVSS v4.0)
Medium (CVSS v3.1)
Risk Level for Nozomi customersLow

Summary

An access control vulnerability was found, due to the restrictions that are applied on actual assertions not being enforced in their debug functionality.

Impact

An authenticated user with reduced visibility can obtain unauthorized information via the debug functionality, obtaining data that would normally be not accessible in the Query and Assertions functions.

Affected Products

Guardian, CMC < v22.6.2

Workarounds and Mitigations

Use internal firewall features to limit access to the web management interface.

Solutions

Upgrade to v22.6.2 or later.

Modification History

2023-08-09: 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

Related Links

Acknowledgements

We thank the following parties for their efforts:

  • Stefano Libero of Nozomi Networks Product Security team for finding this issue during a scheduled internal VAPT testing session

Contact

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