CVE-2024-20373
Cisco IOS and Cisco IOS XE SNMP Extended ACL Bypass Vulnerability
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) IPv4 access control list (ACL) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to perform SNMP polling of an affected device, even if it is configured to deny SNMP traffic.
This vulnerability exists because Cisco IOS Software and Cisco IOS XE Software do not support extended IPv4 ACLs for SNMP, but they do allow administrators to configure extended named IPv4 ACLs that are attached to the SNMP server configuration without a warning message. This can result in no ACL being applied to the SNMP listening process. An attacker could exploit this vulnerability by performing SNMP polling of an affected device. A successful exploit could allow the attacker to perform SNMP operations that should be denied. The attacker has no control of the SNMP ACL configuration and would still need a valid SNMP version 2c (SNMPv2c) community string or SNMP version 3 (SNMPv3) user credentials.
SNMP with IPv6 ACL configurations is not affected.
For more information, see the section of this advisory.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-11-08 CVE Reserved
- 2024-11-15 CVE Published
- 2024-11-15 CVE Updated
- 2024-11-16 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-284: Improper Access Control
CAPEC
References (1)
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| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-uwBXfqww |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.6 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.6" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.12.3 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.12.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.12.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.12.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.4 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.5 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.5" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.12.4 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.12.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.3 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.3 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.3 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.11.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.11.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.11.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.11.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.11.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.11.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.9.4 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.9.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.9.3 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.9.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.10.2 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.10.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.11.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.11.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.11.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.11.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.12.5 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.12.5" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XE Catalyst SD-WAN Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" | 16.11.1 Search vendor "Cisco" for product "Cisco IOS XE Catalyst SD-WAN" and version "16.11.1" | en |
Affected
| ||||||