PT-2019-19288 · Netis · Netis Wf2Xxx+2

Published 2019-02-21 · Updated 2020-08-24 · CVE-2019-8985

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Netis WF2411 version 2.1.36123 Netis WF2xxx devices versions WF2411 through WF2880

Description The issue is a stack-based buffer overflow that does not require authentication, potentially causing denial of service or remote code execution. This can be triggered by a GET request with a long HTTP "Authorization: Basic" header, which is mishandled by the user auth->user ok function in the /bin/boa endpoint.

Recommendations For Netis WF2411 version 2.1.36123, consider restricting access to the /bin/boa endpoint until a patch is available. For Netis WF2xxx devices versions WF2411 through WF2880, avoid using long HTTP "Authorization: Basic" headers in GET requests to prevent potential exploitation. As a temporary workaround, consider disabling the user auth->user ok function in the /bin/boa endpoint to minimize the risk of exploitation.

Exploit

Fix

Missing Authentication

Memory Corruption

Weakness Enumeration

CWE-306

CWE-787

Related Identifiers

CVE-2019-8985

Affected Products

Netis Wf2411

Netis Wf2Xxx

Boa

References · 3

• 🔥 https://github.com/WhooAmii/whooamii.github.io/blob/master/2018/netis/buffer%20overflow.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-8985 · Security Note
• https://osv.dev/vulnerability/CVE-2019-8985 · Vendor Advisory