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I. Basic Information for CVE-2021-31249
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A CRLF injection vulnerability was found on BF-430, BF-431, and BF-450M TCP/IP Converter devices from CHIYU Technology Inc due to a lack of validation on the parameter redirect= available on multiple CGI components.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
多款Chiyu产品注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Chiyu CHIYU BF-430等都是中国台湾七友科技（Chiyu）公司的一款为门禁、考勤系统等设备提供通讯的联网服务器。 CHIYU Technology Inc 的 BF-430、BF-431 和 BF-450M TCP/IP 转换器设备上存在安全漏洞，该漏洞源于缺乏对多个CGI组件上可用的参数重定向=的验证。
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
VendorProductAffected VersionsCPESubscribe
-n/a n/a -
II. Public POCs for CVE-2021-31249
#POC DescriptionSource LinkShenlong Link
1CHIYU TCP/IP Converter BF-430, BF-431, and BF-450 are susceptible to carriage return line feed injection. The redirect= parameter, available on multiple CGI components, is not properly validated, thus enabling an attacker to obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-31249.yamlPOC Details
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III. Intelligence Information for CVE-2021-31249
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IV. Related Vulnerabilities
Same product: n/a
Same vendor: n/a
V. Comments for CVE-2021-31249

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