SSH Tectia Client up to 6.4.18 on Windows ConnectSecure entropy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in SSH Tectia Client up to 6.4.18 on Windows. Affected by this vulnerability is an unknown functionality of the component ConnectSecure. This manipulation causes entropy. The identification of this vulnerability is CVE-2021-27891. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in SSH Tectia Client up to 6.4.18 on Windows (SSH Server Software). It has been declared as problematic. Affected by this vulnerability is an unknown code of the component ConnectSecure. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. As an impact it is known to affect confidentiality.

The weakness was shared 03/15/2021. It is possible to read the advisory at info.ssh.com. This vulnerability is known as CVE-2021-27891. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

Upgrading to version 6.4.19 eliminates this vulnerability.

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

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tectia Client 6.4.19

Timelineinfo

03/02/2021 🔍
03/15/2021 +13 days 🔍
03/15/2021 +0 days 🔍
04/01/2021 +17 days 🔍

Sourcesinfo

Advisory: info.ssh.com
Status: Confirmed

CVE: CVE-2021-27891 (🔍)
GCVE (CVE): GCVE-0-2021-27891
GCVE (VulDB): GCVE-100-171259

Entryinfo

Created: 03/15/2021 18:23
Updated: 04/01/2021 12:51
Changes: 03/15/2021 18:23 (40), 04/01/2021 12:46 (5), 04/01/2021 12:51 (18)
Complete: 🔍
Cache ID: 216::103

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

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