Vulnerability Name:

CVE-2022-20675 (CCN-223539)

Assigned:2021-11-02
Published:2022-04-06
Updated:2022-04-14
Summary: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.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2022-20675

Source: XF
Type: UNKNOWN
cisco-cve202220675-dos(223539)

Source: CCN
Type: Cisco Security Advisory cisco-sa-ESA-SNMP-JLAJksWK
Multiple Cisco Security Products Simple Network Management Protocol Service Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20220406 Multiple Cisco Security Products Simple Network Management Protocol Service Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:asyncos:*:*:*:*:*:*:*:* (Version >= 14.0 and < 14.02.0-020)
  • AND
  • cpe:/o:cisco:email_security_appliance_firmware:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:cisco:asyncos:*:*:*:*:*:*:*:* (Version >= 12.5 and < 14.1.0-239)
  • AND
  • cpe:/h:cisco:secure_email_and_web_manager:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:cisco:asyncos:*:*:*:*:*:*:*:* (Version >= 12.0 and < 14.0.2-012)
  • AND
  • cpe:/h:cisco:web_security_appliance:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:web_security_appliance:-:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:secure_email_and_web_manager:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco asyncos *
    cisco email security appliance -
    cisco asyncos *
    cisco secure email and web manager -
    cisco asyncos *
    cisco web security appliance -
    cisco web security appliance -
    cisco secure email and web manager -