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I. Basic Information for CVE-2021-28840
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.
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
D-Link多款产品代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DAP-2310和DAP-2330都是中国台湾友讯(D-Link)公司的产品。DAP-2310是一款单频段无线网络接入点,适合需要快速可靠无线网络的小型企业或学校。DAP-2330是无线N300单频PoE接入点。提供可靠、高速的无线性能,最大无线信号速率高达 300 Mbps。 D-Link多款产品存在安全漏洞,该漏洞源于当二进制处理特定的 HTTP GET 请求时,upload_file 变量中的内容在 upload_config 函数中为 NULL,则 strncasecmp 将 NUL
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-2021-28840
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III. Intelligence Information for CVE-2021-28840
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IV. Related Vulnerabilities
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