Vulnerability identifier: #VU76258
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-338
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Synapse
Server applications /
Conferencing, Collaboration and VoIP solutions
Sydent
Server applications /
Directory software, identity management
Vendor:
Description
The vulnerability allows a remote attacker to gain unauthorized access to the application.
The vulnerability exists due to usage of a weak algorithm to generate a Sydent authentication token or a Synapse random ID. A remote attacker can brute-force the token and gain unauthorized access to the application.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://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/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.