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MEDIUM · 5.8

CVE-2024-20263

A vulnerability with the access control list (ACL) management within a stacked switch configuration of Cisco Business 250 Series Smart Switches and Business 350 Series Managed Switches could allow an ...

Vulnerability Description

A vulnerability with the access control list (ACL) management within a stacked switch configuration of Cisco Business 250 Series Smart Switches and Business 350 Series Managed Switches could allow an unauthenticated, remote attacker to bypass protection offered by a configured ACL on an affected device. This vulnerability is due to incorrect processing of ACLs on a stacked configuration when either the primary or backup switches experience a full stack reload or power cycle. An attacker could exploit this vulnerability by sending crafted traffic through an affected device. A successful exploit could allow the attacker to bypass configured ACLs, causing traffic to be dropped or forwarded in an unexpected manner. The attacker does not have control over the conditions that result in the device being in the vulnerable state. Note: In the vulnerable state, the ACL would be correctly applied on the primary devices but could be incorrectly applied to the backup devices.

CVSS Score

5.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
CiscoCbs250-8T-D Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-8T-D-
CiscoCbs250-8Pp-D Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-8Pp-D-
CiscoCbs250-8T-E-2G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-8T-E-2G-
CiscoCbs250-8Pp-E-2G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-8Pp-E-2G-
CiscoCbs250-8P-E-2G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-8P-E-2G-
CiscoCbs250-8Fp-E-2G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-8Fp-E-2G-
CiscoCbs250-16T-2G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-16T-2G-
CiscoCbs250-16P-2G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-16P-2G-
CiscoCbs250-24T-4G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-24T-4G-
CiscoCbs250-24Pp-4G Firmware>= 3.4, < 3.4.0.17
CiscoCbs250-24Pp-4G-

Related Weaknesses (CWE)

CWE-284

References

FAQ

What is CVE-2024-20263?

CVE-2024-20263 is a vulnerability with a CVSS score of 5.8 (MEDIUM). A vulnerability with the access control list (ACL) management within a stacked switch configuration of Cisco Business 250 Series Smart Switches and Business 350 Series Managed Switches could allow an ...

How severe is CVE-2024-20263?

CVE-2024-20263 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2024-20263?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Cbs250-8T-D Firmware, Cisco Cbs250-8T-D, Cisco Cbs250-8Pp-D Firmware, Cisco Cbs250-8Pp-D, Cisco Cbs250-8T-E-2G Firmware.