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CVE-2020-37220— Huawei HG630 V2 Router Authentication Bypass via Serial Number

Quick assessment

Affected
www.huawei.com HG630 V2 Router
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.

Huawei HG630是中国华为（Huawei）公司的一款家庭宽带无线路由网关设备。 Huawei HG630 V2存在信任管理问题漏洞，该漏洞源于身份验证绕过问题，可能导致未经身份验证的攻击者通过检索设备序列号获取管理访问权限。

CVSS 7.5 · High EPSS 0.36% · P29

Affected Version Matrix 1

VendorProduct Version RangeStatus
www.huawei.com HG630 V2 Router affected
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I. Basic Information for CVE-2020-37220

Vulnerability Information
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Vulnerability Title
Huawei HG630 V2 Router Authentication Bypass via Serial Number
Source: CVE Program / CVE List V5
Vulnerability Description
Huawei HG630 V2 router contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain administrative access by retrieving the device serial number. Attackers can query the /api/system/deviceinfo endpoint without authentication to extract the SerialNumber field, then use the last 8 characters as the default password to log in to the router.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
Huawei HG630 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Huawei HG630是中国华为（Huawei）公司的一款家庭宽带无线路由网关设备。 Huawei HG630 V2存在信任管理问题漏洞，该漏洞源于身份验证绕过问题，可能导致未经身份验证的攻击者通过检索设备序列号获取管理访问权限。
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
www.huawei.com HG630 V2 Router 0 -

II. Public POCs for CVE-2020-37220

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III. Intelligence Information for CVE-2020-37220

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Vendor Advisories for CVE-2020-37220 (1)

Exploits & Public PoCs for CVE-2020-37220 (1)

Proof of Concept for CVE-2020-37220 (1)

IV. Related Vulnerabilities

Same weakness: CWE-798

V. Comments for CVE-2020-37220

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