Vulnerability identifier: #VU60352
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-284
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mastodon
Server applications /
Other server solutions
Vendor: Mastodon
Description
The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to improper access restrictions because it does not compact incoming signed JSON-LD activities. A remote attacker can send a specially crafted request and gain unauthorized access to the affected application.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Mastodon: 3.3.0 - 3.3.1, 3.4.0 - 3.4.5
External links
http://github.com/mastodon/mastodon/releases/tag/v3.3.2
http://github.com/mastodon/mastodon/releases/tag/v3.4.6
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.