CVE-2024-20373
published 2024-11-15CVE-2024-20373: A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) IPv4 access control list (ACL) feature of Cisco IOS Software and Cisco…
PriorityP432medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.51%
40.1th percentile
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.
Affected
41 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | cisco_ios_xe_catalyst_sd-wan | — | — |
| cisco | ios_and_ios_xe | — | — |
| cisco | ios_xe_sd-wan | — | — |
| cisco | ios_xe_sd-wan | — | — |
| cisco | ios_xe_sd-wan | — | — |
| cisco | ios_xe_sd-wan | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
vendor_cisco5.3MEDIUM
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Cisco
Cisco IOS and IOS XE Software SNMP Extended Named Access Control List Bypass Vulnerability
vendor_cisco·2024-04-17·CVSS 5.3
CVE-2024-20373 [MEDIUM] CWE-284 Cisco IOS and IOS XE Software SNMP Extended Named Access Control List Bypass Vulnerability
Cisco IOS and IOS XE Software SNMP Extended Named Access Control List Bypass Vulnerability
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
Cisco
Cisco IOS and IOS XE Software SNMP Extended Named Access Control List Bypass Vulnerability
vendor_cisco·CVSS 3.1
CVE-2024-20373 Cisco IOS and IOS XE Software SNMP Extended Named Access Control List Bypass Vulnerability
CVE-2024-20373: Cisco IOS and IOS XE Software SNMP Extended Named Access Control List Bypass Vulnerability
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 vul
GHSA
GHSA-3xmf-m2fg-h94r: A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) IPv4 access control list (ACL) feature of Cisco IOS Software an
ghsa_unreviewed·2024-11-15
CVE-2024-20373 [MEDIUM] CWE-284 GHSA-3xmf-m2fg-h94r: A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) IPv4 access control list (ACL) feature of Cisco IOS Software an
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
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-11-15
Published