CVE-2022-20675
First published: Wed Apr 06 2022(Updated: )
A vulnerability in the TCP/IP stack of Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Secure Email and Web Manager, formerly Security Management Appliance, could allow an unauthenticated, remote attacker to crash the Simple Network Management Protocol (SNMP) service, resulting in a denial of service (DoS) condition. This vulnerability is due to an open port listener on TCP port 199. An attacker could exploit this vulnerability by connecting to TCP port 199. A successful exploit could allow the attacker to crash the SNMP service, resulting in a DoS condition.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco AsyncOS | >=14.0<14.02.0-020 | |
| Cisco Email Security Appliance | ||
| Cisco AsyncOS | >=12.5<14.1.0-239 | |
| Cisco Secure Email and Web Manager | ||
| Cisco AsyncOS | >=12.0<14.0.2-012 | |
| Cisco Web Security Appliance |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2022-20675.
Which products are affected by this vulnerability?
This vulnerability affects Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Secure Email and Web Manager.
What is the severity of CVE-2022-20675?
The severity of CVE-2022-20675 is medium with a CVSS score of 5.3.
How can an attacker exploit this vulnerability?
An unauthenticated, remote attacker can exploit this vulnerability to crash the Simple Network Management Protocol (SNMP) service.
Is there a fix available for this vulnerability?
Yes, Cisco has released patches to address this vulnerability. Please refer to the Cisco Security Advisory for more information.
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- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/description
- agent/type
- agent/tags
- agent/event
- agent/last-modified-date
- vendor/cisco
- canonical/cisco asyncos
- version/cisco asyncos/14.0
- canonical/cisco email security appliance
- version/cisco asyncos/12.5
- canonical/cisco secure email and web manager
- version/cisco asyncos/12.0
- canonical/cisco web security appliance