Asus RT-AC68U/RT-AC5300 blocking_request.cgi buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Asus RT-AC68U and RT-AC5300. This vulnerability affects unknown code of the file blocking_request.cgi. Such manipulation leads to buffer overflow. This vulnerability is listed as CVE-2021-45756. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Asus RT-AC68U and RT-AC5300 (affected version not known) and classified as critical. Affected by this issue is some unknown functionality of the file blocking_request.cgi. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was presented 03/23/2022. The advisory is available at github.com. This vulnerability is handled as CVE-2021-45756 since 12/27/2021. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/27/2021 🔍
03/23/2022 +86 days 🔍
03/23/2022 +0 days 🔍
03/25/2022 +2 days 🔍

Sourcesinfo

Vendor: asus.com

Advisory: github.com
Status: Not defined

CVE: CVE-2021-45756 (🔍)
GCVE (CVE): GCVE-0-2021-45756
GCVE (VulDB): GCVE-100-195638
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/23/2022 18:16
Updated: 03/25/2022 09:43
Changes: 03/23/2022 18:16 (39), 03/25/2022 09:43 (1)
Complete: 🔍
Cache ID: 216::103

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