High severity · published Sep 19, 2023
CVE-2023-32649
DoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
CMC · Nozomi Networks
22.6.0 before 22.6.3; 23.0.0 before 23.1.0 · source: vendor, NVD
GU
Guardian · Nozomi Networks
22.6.0 before 22.6.3; 23.0.0 before 23.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-32649
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-32649
Vendor Advisory
https://security.nozominetworks.com/NN-2023:10-01
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