CVE-2022-37129 — D-Link DIR-816 A2_v1

D-Link DIR-816 A2_v1.10CNB04.img is vulnerable to Command Injection via /goform/SystemCommand. After the user passes in the command parameter, it will be spliced into byte_4836B0 by snprintf, and finally doSystem(&byte_4836B0); will be executed, resulting in a command injecti

01What is this vulnerability?

D-Link DIR-816 A2_v1.10CNB04.img is vulnerable to Command Injection via /goform/SystemCommand. After the user passes in the command parameter, it will be spliced into byte_4836B0 by snprintf, and finally doSystem(&byte_4836B0); will be executed, resulting in a command injection.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-08-31T22:44:57.000Z
• Last modified: 2024-08-03T10:21:33.256Z

09References

• www.dlink.com — https://www.dlink.com/en/security-bulletin/
• github.com — https://github.com/z1r00/IOT_Vul/blob/main/dlink/Dir816/SystemCommand/readme.md