Matrix Sydent/Synapse Random Number Generator Token weak authentication

A vulnerability, which was classified as critical, has been found in Matrix Sydent and Synapse. Affected by this issue is some functionality of the component Random Number Generator. The manipulation with an unknown input leads to a weak authentication vulnerability (Token). Using CWE to declare the problem leads to CWE-287. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 05/09/2019. This vulnerability is handled as CVE-2019-11842 since 05/09/2019. The exploitation is known to be difficult. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

Vendor

Name

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: ≈4.6
VulDB Temp Score: ≈4.4
VulDB Vector: ?
VulDB Reliability: ?

VulDB Base Score: ?
VulDB Temp Score: ?
VulDB Reliability: ?
Class: Weak authentication / Token (CWE-287)
Local: Yes
Remote: No

Availability: ?
Status: Not defined

Price Prediction: ?
Current Price Estimation: ?

Threat Intelligenceinfoedit

Threat: ?
Adversaries: ?
Geopolitics: ?
Economy: ?
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Remediation: ?Recommended: Upgrade
Status: ?
0-Day Time: ?05/09/2019 Advisory disclosed
05/09/2019 +0 days CVE assigned
05/10/2019 +1 days VulDB entry created
05/10/2019 +0 days VulDB last updateCVE: CVE-2019-11842 (?)Created: 05/10/2019 06:53 AM
Complete: ?

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