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CVE-2022-20943
CVE ID
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CVE-2022-20943
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device.
These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition.
Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details [“#details”] section of this advisory for more information.
Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.
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CVSS V3 Severity and Metrics
General Information
Vendors
Products
- cyber vision 3.0.0,
- cyber vision 3.0.1,
- cyber vision 3.0.2,
- cyber vision 3.0.3,
- cyber vision 3.0.5,
- cyber vision 3.0.6,
- cyber vision 3.1.0,
- cyber vision 3.1.1,
- cyber vision 3.1.2,
- cyber vision 3.2.0,
- cyber vision 3.2.1,
- cyber vision 3.2.2,
- cyber vision 3.2.3,
- cyber vision 3.2.4,
- cyber vision 4.0.0,
- cyber vision 4.0.1,
- cyber vision 4.0.2,
- cyber vision 4.0.3,
- cyber vision 4.1.0,
- cyber vision 4.1.1,
- firepower threat defense 7.0.0,
- firepower threat defense 7.0.0.1,
- firepower threat defense 7.0.1,
- firepower threat defense 7.0.1.1,
- meraki mx security appliance firmware
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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