VDB-171935 · CVE-2021-27245 · GCVE-0-2021-27245

TP-LINK Archer A7/Archer C7 IPv6 SSH protection mechanism

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.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in TP-LINK Archer A7 and Archer C7. Impacted is an unknown function of the component IPv6 SSH Handler. The manipulation leads to protection mechanism. This vulnerability is referenced as CVE-2021-27245. Remote exploitation of the attack is possible. No exploit is available. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in TP-LINK Archer A7 and Archer C7 (affected version unknown). It has been rated as critical. This issue affects an unknown functionality of the component IPv6 SSH Handler. The manipulation with an unknown input leads to a protection mechanism vulnerability. Using CWE to declare the problem leads to CWE-693. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. Impacted is confidentiality, integrity, and availability.

The weakness was published 03/30/2021. It is possible to read the advisory at zerodayinitiative.com. The identification of this vulnerability is CVE-2021-27245. The technical details are unknown and an exploit is not publicly available.

Addressing this vulnerability is possible by firewalling .

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

TP-LINK

Name

License

commercial

Website

Vendor: https://www.tp-link.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.6
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Protection mechanism
CWE: CWE-693
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

02/16/2021 🔍
03/30/2021 +41 days 🔍
03/30/2021 +0 days 🔍
04/06/2021 +7 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: zerodayinitiative.com
Status: Confirmed

CVE: CVE-2021-27245 (🔍)
GCVE (CVE): GCVE-0-2021-27245
GCVE (VulDB): GCVE-100-171935

Entryinfo

Created: 03/30/2021 10:21
Updated: 04/06/2021 15:53
Changes: 03/30/2021 10:21 (36), 04/06/2021 15:49 (5), 04/06/2021 15:53 (19)
Complete: 🔍
Cache ID: 216::103