CVE-2023-32151: dir-2640 Command Injection — Fix

Description

D-Link DIR-2640 DestNetwork Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-2640 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the DestNetwork parameter provided to the HNAP1 endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19548.

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CVSS v3.1 Score

6.8

MEDIUM

CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor	Product	Versions
dlink	dir-2640_firmware	All
dlink	dir-2640	All

References

Advisories & Patches

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10323 https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10323

Other References

https://www.zerodayinitiative.com/advisories/ZDI-23-543/ https://www.zerodayinitiative.com/advisories/ZDI-23-543/

Frequently Asked Questions

What is CVE-2023-32151? +

D-Link DIR-2640 DestNetwork Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-2640 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the DestNetwork parameter provided to the HNAP1 endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19548. It has a CVSS v3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2023-32151? +

CVE-2023-32151 has a CVSS v3.1 score of 6.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-32151? +

CVE-2023-32151 affects products from dlink, specifically: dir-2640, dir-2640_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-32151? +

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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