Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dlink | Dir-816 Firmware | 1.10cnb05_r1b011d88210 |
| Dlink | Dir-816 | a2 |
Related Weaknesses (CWE)
References
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injectionThird Party Advisory
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injectExploitThird Party Advisory
- https://www.dlink.com/en/security-bulletin/Vendor Advisory
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injectionThird Party Advisory
- https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injectExploitThird Party Advisory
- https://www.dlink.com/en/security-bulletin/Vendor Advisory
FAQ
What is CVE-2021-39509?
CVE-2021-39509 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 u...
How severe is CVE-2021-39509?
CVE-2021-39509 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-39509?
Check the references section above for vendor advisories and patch information. Affected products include: Dlink Dir-816 Firmware, Dlink Dir-816.