CVE-2021-46315

high-risk
Published 2022-02-17

Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicoius users can use this vulnerability to use "\ " or backticks in the shell metacharacters in the ssid0 or ssid1 parameters to cause arbitrary command execution. Since CVE-2019-17510 vulnerability has not been patched and improved www/hnap1/control/setwizardconfig.php, can also use line breaks and backquotes to bypass.

Do I need to act?

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32.0% chance of exploitation in next 30 days
EPSS score — higher than 68% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Dlink

References (4)

Exploit https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Comman...
Vendor Advisory https://www.dlink.com/en/security-bulletin/
Exploit https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Comman...
Vendor Advisory https://www.dlink.com/en/security-bulletin/
55
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 16/34 · Moderate
Exposure 7/34 · Low