Asus · Asus Lyra Mini · CVE-2021-32030
**Name of the Vulnerable Software and Affected Versions**
ASUS GT-AC2900 versions prior to 3.0.0.4.386.42643
Lyra Mini versions prior to 3.0.0.4 384 46630
**Description**
The administrator application on ASUS GT-AC2900 and Lyra Mini devices allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This issue relates to the `handle request` function 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. There have been attempts to exploit this issue, with 379,868 attempts reported as failed due to a tiny error.
**Recommendations**
For ASUS GT-AC2900 versions prior to 3.0.0.4.386.42643, update to version 3.0.0.4.386.42643 or later.
For Lyra Mini versions prior to 3.0.0.4 384 46630, update to version 3.0.0.4 384 46630 or later.
As a temporary workaround, consider disabling the remote access features from WAN to minimize the risk of exploitation.