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CVE-2024-20263

Quick assessment

Affected
Cisco Cisco Small Business Smart and Managed Switches
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Small Business是美国思科（Cisco）公司的一个交换机。 Cisco Small Business 存在安全漏洞，该漏洞源于当主交换机或备用交换机经历完整堆栈重新加载或电源周期时，堆栈配置上的 ACL 处理不正确。

CVSS 5.8 · Medium EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2024-20263

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Small Business 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Small Business是美国思科（Cisco）公司的一个交换机。 Cisco Small Business 存在安全漏洞，该漏洞源于当主交换机或备用交换机经历完整堆栈重新加载或电源周期时，堆栈配置上的 ACL 处理不正确。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Small Business Smart and Managed Switches 2.0.0.73 -

II. Public POCs for CVE-2024-20263

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III. Intelligence Information for CVE-2024-20263

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Vendor Advisories for CVE-2024-20263 (1)

Same Patch Batch · Cisco · 2024-01-26 · 3 CVEs total

CVE-2024-20253 9.9 CRITICAL Cisco Unified Communications Products 安全漏洞
CVE-2024-20305 4.8 MEDIUM Cisco Unity Connection 安全漏洞

IV. Related Vulnerabilities

Same product: Cisco Small Business Smart and Managed Switches
Same vendor: Cisco
Same weakness: CWE-284

V. Comments for CVE-2024-20263

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