#VU61942 Uncaught Exception in Cisco Systems, Inc products - CVE-2022-20675

Vulnerability identifier: #VU61942

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-20675

CWE-ID: CWE-248

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Email Security Appliance
Server applications / IDS/IPS systems, Firewalls and proxy servers
Cisco Web Security Appliance
Server applications / IDS/IPS systems, Firewalls and proxy servers
Cisco Secure Email and Web Manager
Server applications / Other server solutions

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect handling of connection requests sent to port 199/tcp. A remote non-authenticated attacker can connect to port 199/tcp and crash the SNMP service.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Email Security Appliance: 13.0.1 - 14.0

Cisco Secure Email and Web Manager: 12.5 - 14.1

Cisco Web Security Appliance: 12.0.1 268 - 14.0.2

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ESA-SNMP-JLAJksWK
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa06167
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa07400
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa08629

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.