CVE-2023-32140: dap-1360 Heap Overflow — Fix

Description

D-Link DAP-1360 webproc var:sys_Token Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1360 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling requests to the /cgi-bin/webproc endpoint. When parsing the var:sys_Token parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-18418.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-122 CWE-122

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
dlink	dap-1360_firmware	< 6.15eub01
dlink	dap-1360	All
dlink	dap-2020_firmware	< 1.03rc004
dlink	dap-2020	All

References

Advisories & Patches

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10324 https://www.zerodayinitiative.com/advisories/ZDI-23-532/ https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10324 https://www.zerodayinitiative.com/advisories/ZDI-23-532/

Frequently Asked Questions

What is CVE-2023-32140? +

D-Link DAP-1360 webproc var:sys_Token Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1360 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling requests to the /cgi-bin/webproc endpoint. When parsing the var:sys_Token parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-18418. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-32140? +

CVE-2023-32140 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-32140? +

CVE-2023-32140 affects products from dlink, specifically: dap-1360, dap-1360_firmware, dap-2020, dap-2020_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-32140? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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