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CVE-2023-31427— Knowledge of full path name

Quick assessment

Affected
Brocade Fabric OS
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.

Brocade Fabric OS（FOS）是美国博科（Brocade）公司的一套使用在交换机和路由器等设备中的嵌入式操作系统。 Brocade Fabric OS存在安全漏洞，该漏洞源于允许经过身份验证的攻击者获取内部完整路径并执行任意命令。受影响的产品和版本： Brocade Fabric OS 9.1.1c之前版本，9.2.0之前版本。

CVSS 7.8 · High EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1068.001
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I. Basic Information for CVE-2023-31427

Vulnerability Information
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Vulnerability Title
Knowledge of full path name
Source: CVE Program / CVE List V5
Vulnerability Description
Brocade Fabric OS versions before Brocade Fabric OS v9.1.1c, and v9.2.0 Could allow an authenticated, local user with knowledge of full path names inside Brocade Fabric OS to execute any command regardless of assigned privilege. Starting with Fabric OS v9.1.0, “root” account access is disabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Brocade Fabric OS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Brocade Fabric OS（FOS）是美国博科（Brocade）公司的一套使用在交换机和路由器等设备中的嵌入式操作系统。 Brocade Fabric OS存在安全漏洞，该漏洞源于允许经过身份验证的攻击者获取内部完整路径并执行任意命令。受影响的产品和版本： Brocade Fabric OS 9.1.1c之前版本，9.2.0之前版本。
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
Brocade Fabric OS after 9.1.0 and before Brocade Fabric OS v9.2.0 and v9.1.1c -

II. Public POCs for CVE-2023-31427

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III. Intelligence Information for CVE-2023-31427

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Vendor Advisories for CVE-2023-31427 (1)

Other References for CVE-2023-31427 (1)

Same Patch Batch · Brocade · 2023-08-01 · 9 CVEs total

CVE-2023-31425 7.8 HIGH Privilege escalation via the fosexec command
CVE-2023-31432 7.8 HIGH Privilege issues in multiple commands
CVE-2023-31426 6.8 MEDIUM scp, sftp, ftp servers passwords in supportsave
CVE-2023-31928 6.3 MEDIUM XSS vulnerability in Brocade Webtools
CVE-2023-31429 5.5 MEDIUM Multiple commands print sensitive information in the terminal
CVE-2023-31431 5.5 MEDIUM A buffer overflow vulnerability in “diagstatus” command
CVE-2023-31430 5.5 MEDIUM buffer overflow vulnerability in “secpolicydelete” command
CVE-2023-31428 5.5 MEDIUM CLI allows upload or transfer files of dangerous types

IV. Related Vulnerabilities

Same product: Fabric OS
Same vendor: Brocade
Same weakness: CWE-22

V. Comments for CVE-2023-31427

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