VDB-182897 · CVE-2021-41393 · GCVE-0-2021-41393

Gravitational Teleport up to 4.4.10/5.2.3/6.2.11/7.1.0 SSH certificate validation

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.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Gravitational Teleport up to 4.4.10/5.2.3/6.2.11/7.1.0. Affected by this vulnerability is an unknown functionality of the component SSH. The manipulation leads to certificate validation. This vulnerability is uniquely identified as CVE-2021-41393. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Gravitational Teleport up to 4.4.10/5.2.3/6.2.11/7.1.0. It has been rated as critical. This issue affects an unknown functionality of the component SSH. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 09/19/2021. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-41393 since 09/18/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 4.4.11, 5.2.4, 6.2.12 or 7.1.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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

Productinfo

Vendor

Gravitational

Name

Teleport

Version

Website

Product: https://github.com/gravitational/teleport/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Teleport 4.4.11/5.2.4/6.2.12/7.1.1

Timelineinfo

09/18/2021 🔍
09/19/2021 +1 days 🔍
09/19/2021 +0 days 🔍
09/22/2021 +3 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-41393 (🔍)
GCVE (CVE): GCVE-0-2021-41393
GCVE (VulDB): GCVE-100-182897

Entryinfo

Created: 09/19/2021 07:32
Updated: 09/22/2021 18:02
Changes: 09/19/2021 07:32 (40), 09/22/2021 18:02 (1)
Complete: 🔍
Cache ID: 216::103