CVE-2021-32030
ASUS Routers Improper Authentication Vulnerability
Description
The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This relates to handle_request in router/httpd/httpd.c and auth_check in web_hook.o. An attacker-supplied value of '\0' matches the device's default value of '\0' in some situations. Note: All versions of Lyra Mini and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability, Consumers can mitigate this vulnerability by disabling the remote access features from WAN.
KEV Information
CVSS Score
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HOpen in CalculatorAffected Products
| Vendor | Product | Version |
|---|---|---|
| asus | lyra mini firmware | < 3.0.0.4.384.46630 |
| asus | gt-ac2900 firmware | < 3.0.0.4.386.42643 |
Multiple CVSS Assessments
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md(Broken Link, Exploit, Third Party Advisory)
- https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/(Product)
- https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/(Product)
- https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass(Exploit)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-32030(US Government Resource)
Need Help With Vulnerability Management?
Our security experts can help you prioritize and remediate vulnerabilities effectively.