🛡️ CVE-2019-5885 — matrix-synapse

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-330 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Matrix Synapse Predictable Secret Key

Matrix Synapse before 0.34.0.1, when the macaroon_secret_key authentication parameter is not set, uses a predictable value to derive a secret key and other secrets which could allow remote attackers to impersonate users.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2019-5885 is classified as CWE-330: Use of Insufficiently Random Values. Values that must be unpredictable are generated in a way an attacker can guess or reproduce.

Affected software

CVE-2019-5885 is recorded against 1 package.

  • matrix-synapse (fixed in 0.34.0.1)

Timeline and source

Published on 13 May 2022 and last revised on 24 September 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)
github.com (Web)
lists.fedoraproject.org (Web)
lists.fedoraproject.org (Web)
matrix.org (Web)
matrix.org (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CWE CWE-330
Public Exploit ✅ No
Source OSV
Published 2022-05-13
Updated 2026-08-12
Modified 2024-09-24
Fix URL N/A

Affected Packages

Software From version Fixed in
matrix-synapse 0.34.0.1

References

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