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    CVE-2019-11842

    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:May 9, 2019
    Last Modified:Nov 21, 2024
    EPS:May 9, 2019
    EPSS Score:0.00535
    CVSS Score:7.5

    Affected Products

    Vendor
    Matrix
    Product
    Sydent
    Vendor
    Matrix
    Product
    Synapse

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2021-29431 (CVSS 7.7) — Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal syst…
    CVE-2021-29432 (CVSS 5.3) — Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails…
    CVE-2021-29430 (CVSS 7.5) — Sydent is a reference Matrix identity server. Sydent does not limit the size of requests it receives from HTTP…
    CVE-2021-29433 (CVSS 4.3) — Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing input validation of …
    CVE-2019-11340 (CVSS 5.9) — util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High