Vulnerability-Lookup

NN-2023:10-01

Vulnerability from csaf_nozominetworks - Published: 2023-09-18 11:00 - Updated: 2024-09-19 11:00

Summary

DoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0

Severity

High

Notes

Risk Level for Nozomi customers: High

CVE-2023-32649

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Affected products

Fixed 4 products

Product	Identifier	Version	Remediation
Nozomi Networks Guardian 22.6.3 Nozomi Networks / Guardian		22.6.3
Nozomi Networks Guardian 23.1.0 Nozomi Networks / Guardian		23.1.0
Nozomi Networks CMC 22.6.3 Nozomi Networks / CMC		22.6.3
Nozomi Networks CMC 23.1.0 Nozomi Networks / CMC		23.1.0

Known affected 4 products

Product	Version	Remediation
Nozomi Networks Guardian >=22.6.0\|<22.6.3 Nozomi Networks / Guardian	vers:gem/>=22.6.0\|<22.6.3	Mitigation Vendor Fix
Nozomi Networks Guardian >=23.0.0\|<23.1.0 Nozomi Networks / Guardian	vers:gem/>=23.0.0\|<23.1.0	Mitigation Vendor Fix
Nozomi Networks CMC >=22.6.0\|<22.6.3 Nozomi Networks / CMC	vers:gem/>=22.6.0\|<22.6.3	Mitigation Vendor Fix
Nozomi Networks CMC >=23.0.0\|<23.1.0 Nozomi Networks / CMC	vers:gem/>=23.0.0\|<23.1.0	Mitigation Vendor Fix

Threats

Impact During the (limited) time window before the IDS module is automatically restarted, network traffic may not be analyzed.

References

3 references

URL	Category
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV…	external
https://security.nozominetworks.com/csaf/2023/nn-…	self
https://security.nozominetworks.com/NN-2023:10-01	self

Acknowledgments

Nozomi Networks

JSON

To clipboard

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CVE-2023-32649 (GCVE-0-2023-32649)

Vulnerability from cvelistv5 – Published: 2023-09-19 10:06 – Updated: 2025-02-27 20:49

Title

DoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0

Summary

A Denial of Service (Dos) vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in certain fields used in the Asset Intelligence functionality of our IDS, allows an unauthenticated attacker to crash the IDS module by sending specially crafted malformed network packets. During the (limited) time window before the IDS module is automatically restarted, network traffic may not be analyzed.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-26 21:50 UTC

CWE

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Assigner

Nozomi CNA under the mitre root

CNA scorecard B 81/100 over 60 records in the last 180 days details

References

1 reference

URL	Tags
https://security.nozominetworks.com/NN-2023:10-01

Impacted products

2 products

Vendor	Product	Version
Nozomi Networks	Guardian	Affected: 22.6.0 , < 22.6.3 (semver) Affected: 23.0.0 , < 23.1.0 (semver)
Nozomi Networks	CMC	Affected: 22.6.0 , < 22.6.3 (semver) Affected: 23.0.0 , < 23.1.0 (semver)

Date Public

2023-09-18 07:00

Credits

This issue was found by Nozomi Networks during an internal investigation.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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