Vulnerability Details : CVE-2021-46319
Potential exploit
Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users can use this vulnerability to use "\ " or backticks to bypass the shell metacharacters in the ssid0 or ssid1 parameters to execute arbitrary commands.This vulnerability is due to the fact that CVE-2019-17509 is not fully patched and can be bypassed by using line breaks or backticks on its basis.
Vulnerability category: Execute code
Products affected by CVE-2021-46319
- cpe:2.3:o:dlink:dir-846_firmware:100a43:*:*:*:*:*:*:*
- cpe:2.3:o:dlink:dir-846_firmware:100a53dla:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-46319
14.66%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-46319
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
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-2021-46319
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-46319
-
https://www.dlink.com/en/security-bulletin/
Security Bulletin | D-LinkVendor Advisory
-
https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md
DIR-846_Command_Injection/DIR-846_Command_Injection1.md at main · doudoudedi/DIR-846_Command_Injection · GitHubExploit;Third Party Advisory
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