Headline
CVE-2023-32649: NN-2023:10-01 - DoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0 - CVE-2023-32649
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.
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.
Impact
During the (limited) time window before the IDS module is automatically restarted, network traffic may not be analyzed.
Affected Products
Guardian, CMC >= 22.6.0, < v22.6.3 or < v23.1.0
Workarounds and Mitigations
N/A. It is recommended to monitor the IDS log to check for abnormal stops and restarts.
Solutions
Upgrade to v22.6.3, v23.1.0 or later.
Modification History
2023-09-18: Initial revision
Related Links****Acknowledgements
We thank the following parties for their efforts:
- Nozomi Networks for finding this issue during an internal investigation