SB2022040627 - Denial of service when handling SNMP connections in Cisco ESA, WSA and Secure Email and Web Manager
Published: April 6, 2022
Security Bulletin ID
SB2022040627
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Uncaught Exception (CVE-ID: CVE-2022-20675)
CWE-ID: CWE-248 - Uncaught Exception
CVSSv4: 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
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.
Remediation
Install update from vendor's website.