ASUS GT-AC2900 prior 3.0.0.4.386.42643 router/httpd/httpd.c handle_request improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in ASUS GT-AC2900. It has been classified as critical. Impacted is the function handle_request of the file router/httpd/httpd.c. The manipulation leads to improper authentication. This vulnerability is documented as CVE-2021-32030. The attack can be initiated remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in ASUS GT-AC2900 and classified as critical. This issue affects the function handle_request of the file router/httpd/httpd.c. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released 05/07/2021 as ATREDIS-2020-0010. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-32030. Technical details as well as a exploit are known.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/02/2025 with a due date of 06/23/2025:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Upgrading to version 3.0.0.4.386.42643 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GT-AC2900 3.0.0.4.386.42643

Timelineinfo

05/05/2021 🔍
05/07/2021 +2 days 🔍
05/07/2021 +0 days 🔍
11/10/2025 +1648 days 🔍

Sourcesinfo

Vendor: asus.com

Advisory: ATREDIS-2020-0010
Status: Confirmed

CVE: CVE-2021-32030 (🔍)
GCVE (CVE): GCVE-0-2021-32030
GCVE (VulDB): GCVE-100-174641
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/07/2021 09:38
Updated: 11/10/2025 16:26
Changes: 05/07/2021 09:38 (39), 05/12/2021 08:27 (5), 01/24/2025 21:51 (33), 06/02/2025 23:22 (13), 11/10/2025 16:26 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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