CVE-2021-32030
ASUS Routers Improper Authentication Vulnerability - [Actively Exploited]
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.
INFO
Published Date :
May 6, 2021, 3:15 p.m.
Last Modified :
June 3, 2025, 9:02 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
ASUS Lyra Mini and ASUS GT-AC2900 devices contain an improper authentication vulnerability that allows an attacker to gain unauthorized access to the administrative interface. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/ ; https://www.asus.com/us/supportonly/rog%20rapture%20gt-ac2900/helpdesk_bios/; https://nvd.nist.gov/vuln/detail/CVE-2021-32030
Public PoC/Exploit Available at Github
CVE-2021-32030 has a 8 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-32030
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-32030.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A curated collection of Proof of Concept (PoC) tools, scripts, and techniques designed for red team operations, penetration testing, and cybersecurity research. This repository focuses on providing practical resources for exploring vulnerabilities
attack cybersecurity exp hw penetration-testing poc red-team security-tools vulnerability-poc
这是一个每天同步Vulnerability-Wiki中docs-base中内容的项目
HTML
None
CSS HTML JavaScript
A Common Vulnerability PoC Knowledge Base一个普遍漏洞POC知识库
vulnerability
一个漏洞 PoC 知识库。A knowledge base for vulnerability PoCs(Proof of Concept), with 1k+ vulnerabilities.
poc
Dockerfile
None
None
essential templates for kenzer [DEPRECATED]
kenzer vulnerabilities kenzer-templates arpsyndicate
Python Shell Ruby
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32030 vulnerability anywhere in the article.
-
BleepingComputer
CISA warns of ConnectWise ScreenConnect bug exploited in attacks
CISA is alerting federal agencies in the U.S. of hackers exploiting a recently patched ScreenConnect vulnerability that could lead to executing remote code on the server. The agency is warning that fo ... Read more
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TheCyberThrone
CISA Adds Five New Vulnerabilities to KEV Catalog
The Cybersecurity and Infrastructure Security Agency (CISA) has expanded its Known Exploited Vulnerabilities (KEV) Catalog, adding five new vulnerabilities that pose a high risk to federal agencies an ... Read more
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Daily CyberSecurity
CISA Adds 5 Actively Exploited Vulnerabilities to KEV Catalog: ASUS Routers, Craft CMS, and ConnectWise Targeted
The Cybersecurity and Infrastructure Security Agency (CISA) has added five new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, citing verified evidence of active exploitation in ... Read more
The following table lists the changes that have been made to the
CVE-2021-32030 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Jun. 03, 2025
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:asus:lyra_mini_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.0.4.384.46630 OR cpe:2.3:h:asus:lyra_mini:-:*:*:*:*:*:*:* Changed Reference Type CVE: https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md Types: Third Party Advisory CVE: https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md Types: Exploit, Third Party Advisory Changed Reference Type MITRE: https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md Types: Third Party Advisory MITRE: https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md Types: Exploit, Third Party Advisory Changed Reference Type CVE: https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ Types: Product, Vendor Advisory CVE: https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ Types: Product Changed Reference Type MITRE: https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ Types: Product, Vendor Advisory MITRE: https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ Types: Product Added Reference Type MITRE: https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/ Types: Product Added Reference Type MITRE: https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass Types: Exploit -
CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725
Jun. 03, 2025
Action Type Old Value New Value Added Date Added 2025-06-02 Added Due Date 2025-06-23 Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Added Vulnerability Name ASUS Routers Improper Authentication Vulnerability -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 02, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-287 -
CVE Modified by [email protected]
Feb. 06, 2025
Action Type Old Value New Value Changed Description The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 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. 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. Added Reference https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/ -
CVE Modified by [email protected]
Jan. 24, 2025
Action Type Old Value New Value Added Reference https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md Added Reference https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
May. 13, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md No Types Assigned https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md Third Party Advisory Changed Reference Type https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ No Types Assigned https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ Product, Vendor Advisory Added CWE NIST CWE-287 Added CPE Configuration AND OR *cpe:2.3:o:asus:gt-ac2900_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.0.4.386.42643 OR cpe:2.3:h:asus:gt-ac2900:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32030 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-32030
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
94.18 }} 0.31%
score
0.99904
percentile