CVE-2021-32030
- State
- Published
- Severity
- 9.8 Critical
- Published
- May 6, 2021
- Updated
- Oct 21, 2025
- Reserved
- May 5, 2021
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md
- https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass
- https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-32030government-resource
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