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CVE-2021-28839

PoC —
CVSS 3.1
7.5 high
EPSS
1%p71
Published
()
Modified
Description

Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_certificate function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the strrchr in the upload_certificate function would take NULL as first argument, and incur the NULL pointer dereference vulnerability.

Vendors
dlink
Products
dap-2310 firmware, dap-2330 firmware, dap-2360 firmware, dap-2553 firmware, dap-2660 firmware, dap-2690 firmware, dap-2695 firmware, dap-3320 firmware, dap-3662 firmware
Weakness
CWE-476
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVE.org GitHub PoCs EPSS (1.4%)

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