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CVE-2023-20234

Quick assessment

Affected
Cisco Cisco Adaptive Security Appliance (ASA) Software
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是美国思科（Cisco）公司的一套运行在思科安全设备中的防火墙软件。 Cisco FXOS Software存在安全漏洞，该漏洞源于没有对CLI命令的参数进行验证，导致存在任意文件写入漏洞。攻击者可利用该漏洞创建文件或覆盖系统上的任意文件。

CVSS 4.4 · Medium EPSS 0.18% · P7
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I. Basic Information for CVE-2023-20234

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to create a file or overwrite any file on the filesystem of an affected device, including system files. The vulnerability occurs because there is no validation of parameters when a specific CLI command is used. An attacker could exploit this vulnerability by authenticating to an affected device and using the command at the CLI. A successful exploit could allow the attacker to overwrite any file on the disk of the affected device, including system files. The attacker must have valid administrative credentials on the affected device to exploit this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco FXOS Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco FXOS Software是美国思科（Cisco）公司的一套运行在思科安全设备中的防火墙软件。 Cisco FXOS Software存在安全漏洞，该漏洞源于没有对CLI命令的参数进行验证，导致存在任意文件写入漏洞。攻击者可利用该漏洞创建文件或覆盖系统上的任意文件。
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 Adaptive Security Appliance (ASA) Software 9.8.2 -
Cisco Cisco Firepower Threat Defense Software 6.2.3 -
Cisco Cisco Firepower Extensible Operating System (FXOS) 2.2.1.63 -

II. Public POCs for CVE-2023-20234

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III. Intelligence Information for CVE-2023-20234

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Vendor Advisories for CVE-2023-20234 (1)

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

CVE-2023-20200 7.7 HIGH Cisco 多款产品安全漏洞
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

IV. Related Vulnerabilities

Same product: Cisco Adaptive Security Appliance (ASA) Software
Same vendor: Cisco
Same weakness: CWE-73

V. Comments for CVE-2023-20234

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