Chiyu BF-430/BF431/BF-450M/SEMAC Telnet Server improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Chiyu BF-430, BF431, BF-450M and SEMAC. Affected by this vulnerability is an unknown functionality of the component Telnet Server. Performing a manipulation results in improper authentication. This vulnerability is known as CVE-2021-31251. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to use restrictive firewalling.

Detailsinfo

A vulnerability, which was classified as critical, was found in Chiyu BF-430, BF431, BF-450M and SEMAC (version now known). This affects some unknown processing of the component Telnet Server. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 06/05/2021. The advisory is shared at gitbook.seguranca-informatica.pt. This vulnerability is uniquely identified as CVE-2021-31251. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

It is possible to mitigate the weakness by firewalling .

The vulnerability is also documented in the vulnerability database at Exploit-DB (49936). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.7
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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/15/2021 🔍
06/05/2021 +51 days 🔍
06/05/2021 +0 days 🔍
07/02/2024 +1123 days 🔍

Sourcesinfo

Advisory: gitbook.seguranca-informatica.pt
Status: Not defined
Confirmation: 🔍

CVE: CVE-2021-31251 (🔍)
GCVE (CVE): GCVE-0-2021-31251
GCVE (VulDB): GCVE-100-176385
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/05/2021 14:58
Updated: 07/02/2024 13:18
Changes: 06/05/2021 14:58 (36), 06/10/2021 08:59 (6), 06/10/2021 09:03 (18), 07/02/2024 13:18 (24)
Complete: 🔍
Cache ID: 216::103

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

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