CVE-2021-39509
published 2021-08-24CVE-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…
PriorityP180critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
5.10%
91.4th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| dlink | dir-816_firmware | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vulncheck9.8CRITICAL
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GHSA
GHSA-xvjj-gv4g-2h8h: An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1
ghsa_unreviewed·2022-05-24
CVE-2021-39509 [CRITICAL] CWE-77 GHSA-xvjj-gv4g-2h8h: An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1
An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1.10CNB05_R1B011D88210 750m11ac wireless router via the HTTP request parameter in the handler function of /goform/form2userconfig.cgi route, which can construct the user name string to delete the user function.
VulnCheck
D-Link dir-816_firmware Improper Neutralization of Special Elements used in a Command ('Command Injection')
vulncheck·2021·CVSS 9.8
CVE-2021-39509 [CRITICAL] D-Link dir-816_firmware Improper Neutralization of Special Elements used in a Command ('Command Injection')
D-Link dir-816_firmware Improper Neutralization of Special Elements used in a Command ('Command Injection')
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.
Affected: D-Link dir-816_firmware
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-10-09&host_type=src&vulnerability=cve-2021-39509
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/doudoudedi/main-DIR-816_A2_Command-injectionhttps://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.mdhttps://www.dlink.com/en/security-bulletin/https://github.com/doudoudedi/main-DIR-816_A2_Command-injectionhttps://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.mdhttps://www.dlink.com/en/security-bulletin/
2021-08-24
Published
Exploited in the wild