CVE-2019-11842 - Vulnerability Details - OpenCVE

Description

An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID.

Published: 2019-05-09

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:matrix:sydent::::::::
	cpe:2.3:a:matrix:synapse::::::::

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2019-0082	An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID.
Github GHSA	GHSA-gwf7-vfjf-wf6x	matrix-sydent and matrix-synapse Use Cryptographically Weak PRNG
Ubuntu USN	USN-6076-1	Synapse vulnerabilities

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00535.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://matrix.org/blog/2019/05/03/security-updates-sydent-1-0-3-synapse-0-99-3-1-and-riot-android-0-9-0-0-8-99-0-8-28-a/

History

No history.

Subscriptions

Matrix Sydent Synapse

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-05-09T17:06:43.000Z

Updated: 2024-08-04T23:03:32.882Z

Reserved: 2019-05-09T00:00:00.000Z

Link: CVE-2019-11842

Vulnrichment

No data.

NVD

Status : Modified

Published: 2019-05-09T18:29:07.197

Modified: 2024-11-21T04:21:52.673

Link: CVE-2019-11842

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-338

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