CVE-2021-20843
Quick assessment
Affected
Yamaha Corporation RTX830, NVR510, NVR700W, RTX1210
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.
Yamaha NVR500等都是日本雅马哈（Yamaha）公司的产品。Yamaha NVR500是一款企业级路由器。Yamaha RTX810是一款千兆VPN（虚拟私人网络）路由器。Yamaha FWX120是一款防火墙产品。 多款 Yamaha 存在跨站脚本漏洞，该漏洞源于产品的web页面未对输入数据做有效验证。攻击者可通过该漏洞更改产品的设置。
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I. Basic Information for CVE-2021-20843
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Cross-site script inclusion vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15.00.19 and earlier, and RTX1210 Rev.14.01.38 and earlier allows a remote authenticated attacker to alter the settings of the product via a specially crafted web page.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
多款 Yamaha 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yamaha NVR500等都是日本雅马哈（Yamaha）公司的产品。Yamaha NVR500是一款企业级路由器。Yamaha RTX810是一款千兆VPN（虚拟私人网络）路由器。Yamaha FWX120是一款防火墙产品。 多款 Yamaha 存在跨站脚本漏洞，该漏洞源于产品的web页面未对输入数据做有效验证。攻击者可通过该漏洞更改产品的设置。
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 |
|---|---|---|---|---|
| Yamaha Corporation | RTX830, NVR510, NVR700W, RTX1210 | RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15.00.19 and earlier, RTX1210 Rev.14.01.38 and earlier | - |
|
II. Public POCs for CVE-2021-20843
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-20843 (1)
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https://jvn.jp/en/vu/JVNVU91161784/index.html x_refsource_MISC
Other References for CVE-2021-20843 (3)
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https://business.ntt-east.co.jp/topics/2021/11_09.html x_refsource_MISC
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http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91161784.html x_refsource_MISC
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https://www.ntt-west.co.jp/smb/kiki_info/info/211109.html x_refsource_MISC
IV. Related Vulnerabilities
V. Comments for CVE-2021-20843
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