CVE-2021-28839 — NULL Pointer Dereference in Dlink Dap-2310 Firmware

CWE-476 — NULL Pointer Dereference3 documents3 sources
Severity
7.5HIGHNVD
EPSS
0.6%
top 31.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Dlink Dap-2310 FirmwareDlink Dap-2330 FirmwareDlink Dap-2360 Firmware+6 more
Timeline
PublishedAug 10
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages9 packages

▶NVDdlink/dap-2310_firmware2.0.7.rc031
▶NVDdlink/dap-2330_firmware1.07.rc028
▶NVDdlink/dap-2360_firmware2.07.rc043
▶NVDdlink/dap-2553_firmware3.06.rc027
▶NVDdlink/dap-2660_firmware1.13.rc074

🔴Vulnerability Details

2
GHSA
GHSA-rrv2-hvjc-wxqv: Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2↗2022-05-24
▶
CVEList
CVE-2021-28839: Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2↗2021-08-10
▶
CVE-2021-28839 — NULL Pointer Dereference in Dlink | cvebase