PT-2022-4991 · Planex · Planex Mzk-Dp150N

0Xsamy · Published 2022-08-05 · Updated 2022-08-23 · CVE-2021-37289

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Planex MZK-DP150N versions 1.42 through 1.43

Description The issue is related to insecure permissions in the administration interface, allowing attackers to execute system commands as root via the etc ro/web/syscmd.asp file. This can be exploited by a remote attacker to execute arbitrary commands using a specially crafted syscmd.asp file.

Recommendations For Planex MZK-DP150N versions 1.42 and 1.43, consider restricting access to the etc ro/web/syscmd.asp file to prevent exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Default Permissions

Hidden Functionality

Weakness Enumeration

CWE-276

CWE-912

Related Identifiers

BDU:2022-06195

CVE-2021-37289

Affected Products

Planex Mzk-Dp150N

References · 7

• 🔥 https://samy.link/blog/a-hidden-web-shell-in-the-plug-in-wireless-planex-mzk-dp150n · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-37289 · Security Note
• http://planex.co.jp/products/mzk-dp150n · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37289 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06195 · Security Note
• https://github.com/advisories/GHSA-5fwq-7x9f-h7rq · Note
• https://jvn.jp/en/vu/JVNVU98291763 · Note