Vulnerability Details : CVE-2021-39509
Potential exploit
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.
Products affected by CVE-2021-39509
- cpe:2.3:o:dlink:dir-816_firmware:1.10cnb05_r1b011d88210:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-39509
21.23%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39509
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-39509
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39509
-
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md
main-DIR-816_A2_Command-injection/injection.md at main · doudoudedi/main-DIR-816_A2_Command-injection · GitHubExploit;Third Party Advisory
-
https://www.dlink.com/en/security-bulletin/
Security Bulletin | D-LinkVendor Advisory
-
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection
GitHub - doudoudedi/main-DIR-816_A2_Command-injection: this is router_Command injectionThird Party Advisory
Jump to