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matrix synapse vulnerabilities and exploits
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7.5
CVSSv3
CVE-2019-5885
Matrix Synapse prior to 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 malicious users to impersonate users.
Matrix Synapse
Fedoraproject Fedora 28
Fedoraproject Fedora 29
8.8
CVSSv3
CVE-2018-16515
Matrix Synapse prior to 0.33.3.1 allows remote malicious users to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
Matrix Synapse
Debian Debian Linux 8.0
7.5
CVSSv3
CVE-2018-12423
In Synapse prior to 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.
Matrix Synapse
7.5
CVSSv3
CVE-2018-12291
The on_get_missing_events function in handlers/federation.py in Matrix Synapse prior to 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.
Matrix Synapse
7.5
CVSSv3
CVE-2018-10657
Matrix Synapse prior to 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 - 1 render rooms unusable, related to federation/federation_base.py and handlers/message.py, as exploited in the wild in April 2018.
Matrix Synapse
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
man-in-the-middle
CVE-2024-34558
CVE-2024-32674
CVE-2024-34351
XPath injection
CVE-2023-45866
CVE-2024-25528
CVE-2024-25517
path traversal
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