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CVE-2023-20200

Quick assessment

Affected
Cisco Cisco Unified Computing System (Managed)
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 FXOS Software和UCS 6300 Series Fabric Interconnects都是美国思科（Cisco）公司的产品。Cisco FXOS Software是一套运行在思科安全设备中的防火墙软件。UCS 6300 Series Fabric Interconnects是一款6300系列交换矩阵设备。 Cisco FXOS Software存在安全漏洞，该漏洞源于SNMP协议存在安全漏洞。攻击者可利用该漏洞通过发送SNMP请求来导致系统拒绝服务（DoS）。

CVSS 7.7 · High EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-20200

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Simple Network Management Protocol (SNMP) service of Cisco FXOS Software for Firepower 4100 Series and Firepower 9300 Security Appliances and of Cisco UCS 6300 Series Fabric Interconnects could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to the improper handling of specific SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: This vulnerability affects all supported SNMP versions. To exploit this vulnerability through SNMPv2c or earlier, an attacker must know the SNMP community string that is configured on an affected device. To exploit this vulnerability through SNMPv3, the attacker must have valid credentials for an SNMP user who is configured on the affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco 多款产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco FXOS Software和UCS 6300 Series Fabric Interconnects都是美国思科（Cisco）公司的产品。Cisco FXOS Software是一套运行在思科安全设备中的防火墙软件。UCS 6300 Series Fabric Interconnects是一款6300系列交换矩阵设备。 Cisco FXOS Software存在安全漏洞，该漏洞源于SNMP协议存在安全漏洞。攻击者可利用该漏洞通过发送SNMP请求来导致系统拒绝服务（DoS）。
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 Unified Computing System (Managed) 3.1(1e) -
Cisco Cisco Firepower Extensible Operating System (FXOS) 2.2.1.63 -

II. Public POCs for CVE-2023-20200

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III. Intelligence Information for CVE-2023-20200

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Vendor Advisories for CVE-2023-20200 (1)

Same Patch Batch · Cisco · 2023-08-23 · 6 CVEs total

CVE-2023-20169 7.4 HIGH Cisco 多款产品输入验证错误漏洞
CVE-2023-20168 7.1 HIGH Cisco NX-OS Software 输入验证错误漏洞
CVE-2023-20230 5.4 MEDIUM Cisco Application Policy Infrastructure Controller 安全漏洞
CVE-2023-20115 5.4 MEDIUM Cisco Nexus Series Switches 安全漏洞
CVE-2023-20234 4.4 MEDIUM Cisco FXOS Software 安全漏洞

IV. Related Vulnerabilities

Same product: Cisco Unified Computing System (Managed)
Same vendor: Cisco
Same weakness: CWE-835

V. Comments for CVE-2023-20200

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