VDB-189579 · CVE-2021-44158 · GCVE-0-2021-44158

Asus RT-AX56U httpd stack-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Asus RT-AX56U. It has been classified as critical. Impacted is an unknown function of the component httpd. Performing a manipulation results in stack-based overflow. This vulnerability is cataloged as CVE-2021-44158. The attack must originate from the local network. There is no exploit available. It is suggested to use restrictive firewalling.

Detailsinfo

A vulnerability, which was classified as critical, was found in Asus RT-AX56U (unknown version). This affects an unknown code block of the component httpd. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 01/03/2022. It is possible to read the advisory at twcert.org.tw. This vulnerability is uniquely identified as CVE-2021-44158 since 11/23/2021. The technical details are unknown and an exploit is not publicly available.

It is possible to mitigate the weakness by firewalling .

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Asus

Name

RT-AX56U

License

commercial

Website

Vendor: https://www.asus.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.0
CNA Vector (TWCERT/CC): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/23/2021 🔍
01/03/2022 +41 days 🔍
01/03/2022 +0 days 🔍
01/05/2022 +2 days 🔍

Sourcesinfo

Vendor: asus.com

Advisory: twcert.org.tw
Status: Not defined

CVE: CVE-2021-44158 (🔍)
GCVE (CVE): GCVE-0-2021-44158
GCVE (VulDB): GCVE-100-189579

Entryinfo

Created: 01/03/2022 13:46
Updated: 01/05/2022 18:24
Changes: 01/03/2022 13:46 (28), 01/03/2022 13:47 (19), 01/05/2022 18:24 (1)
Complete: 🔍
Cache ID: 216::103