CVE-2021-39509

An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1.10CNB05_R1B011D88210 The HTTP request parameter is used in the handler function of /goform/form2userconfig.cgi route, which can construct the user name string to delete the user function. This can lead to command injection through shell metacharacters.
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
VendorProductVersion
dlinkdir-816_firmware
1.10cnb05_r1b011d88210:cnb05_r1b011d88210
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md
https://www.dlink.com/en/security-bulletin/
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md
https://www.dlink.com/en/security-bulletin/