PT-2018-17111 · Asus · Asus Routers

Published 2018-01-17 · Updated 2020-08-24 · CVE-2018-5721

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: ASUS routers (affected versions not specified)

Description: A stack-based buffer overflow issue exists in the ej update variables function, allowing web authenticated attackers to execute code via a request that updates a setting. The issue arises because the length of the action script variable is not checked, as long as it includes a " wan if" substring.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-5721

Affected Products

Asus Routers

References · 3

• 🔥 http://w0lfzhang.com/2018/01/17/ASUS-router-stack-overflow-in-http-server · Exploit
• https://osv.dev/vulnerability/CVE-2018-5721 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-5721 · Security Note