CVE-2021-28839
published 2021-08-10CVE-2021-28839: 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…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.34%
67.9th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| dlink | dap-2310_firmware | — | — |
| dlink | dap-2330_firmware | — | — |
| dlink | dap-2360_firmware | — | — |
| dlink | dap-2553_firmware | — | — |
| dlink | dap-2660_firmware | — | — |
| dlink | dap-2690_firmware | — | — |
| dlink | dap-2695_firmware | — | — |
| dlink | dap-3320_firmware | — | — |
| dlink | dap-3662_firmware | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdfhttps://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdfhttps://www.dlink.com/en/security-bulletin/https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdfhttps://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdfhttps://www.dlink.com/en/security-bulletin/
2021-08-10
Published