CVE-2021-32030

KEV
Published: Mag 06, 2021 Last Modified: Nov 10, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 7,5
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,9422
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

287

Improper Authentication

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control
Potential Impacts:
Read Application Data Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: ICS/OT, Not Technology-Specific, Web Based
Likelihood of Exploit: High
View CWE Details
Operating System

Gt-Ac2900 Firmware by Asus

Product Information
Vendor Asus
Product Gt-Ac2900 Firmware
Version Range Affected
To 3.0.0.4.386.42643 (exclusive)
cpe:2.3:o:asus:gt-ac2900_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Lyra Mini Firmware by Asus

Product Information
Vendor Asus
Product Lyra Mini Firmware
Version Range Affected
To 3.0.0.4.384.46630 (exclusive)
cpe:2.3:o:asus:lyra_mini_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
https://github.com/atredispartners/advisories/blob/master/A…
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md
https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/AS…
https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT…
https://github.com/atredispartners/advisories/blob/master/A…
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md
https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/AS…
https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT…
https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bi…
https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/
https://www.atredis.com/blog/2021/4/30/asus-authentication-…
https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass