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CVE-2022-23971— ASUS RT-AX56U - Path Traversal

Quick assessment

Affected
ASUS RT-AX56U
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.

ASUS RT-AX56U是中国台湾华硕（ASUS）公司的一款无线路由器。 ASUS RT-AX56U 存在安全漏洞，该漏洞源于未经身份验证的 LAN 攻击者可以通过上传另一个具有相同文件名的 PLC/PORT 文件来覆盖系统文件，从而导致服务中断。

CVSS 8.1 · High EPSS 0.49% · P40
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I. Basic Information for CVE-2022-23971

Vulnerability Information
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Vulnerability Title
ASUS RT-AX56U - Path Traversal
Source: CVE Program / CVE List V5
Vulnerability Description
ASUS RT-AX56U’s update_PLC/PORT file has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated LAN attacker can overwrite a system file by uploading another PLC/PORT file with the same file name, which results in service disruption.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/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
ASUS RT-AX56U 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ASUS RT-AX56U是中国台湾华硕（ASUS）公司的一款无线路由器。 ASUS RT-AX56U 存在安全漏洞，该漏洞源于未经身份验证的 LAN 攻击者可以通过上传另一个具有相同文件名的 PLC/PORT 文件来覆盖系统文件，从而导致服务中断。
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
ASUS RT-AX56U 3.0.0.4.386.45898 -

II. Public POCs for CVE-2022-23971

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III. Intelligence Information for CVE-2022-23971

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Other References for CVE-2022-23971 (1)

Same Patch Batch · ASUS · 2022-04-07 · 7 CVEs total

CVE-2022-25597 8.8 HIGH ASUS RT-AC86U - Command Injection
CVE-2022-25596 8.8 HIGH ASUS RT-AC86U - Heap-based buffer overflow
CVE-2022-23973 8.8 HIGH ASUS RT-AX56U - Stack overflew
CVE-2022-23972 8.8 HIGH ASUS RT-AX56U - SQL Injection
CVE-2022-23970 8.1 HIGH ASUS RT-AX56U - Path Traversal
CVE-2022-25595 6.5 MEDIUM ASUS RT-AC86U - Improper Input Validation

IV. Related Vulnerabilities

Same product: RT-AX56U
Same vendor: ASUS
Same weakness: CWE-22

V. Comments for CVE-2022-23971

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