CVE-2021-28840 - CVE House
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Status published High CVE-2021-28840

Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330...

Vulnerability 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_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

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
Vulnerable Versions:
2.0.7.rc031, 1.07.rc028, 2.07.rc043, 3.06.rc027, 1.13.rc074, 3.16.rc100, 1.17.rc063, 1.01.rc014, 1.01.rc022

Timeline

Official Publish: August 10th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.