Vulnerability identifier: #VU28240
Vulnerability risk: Medium
Exploitation vector: Network
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in ActiveStorage's S3 adapter. A remote attacker can control the Content-Length of an S3 direct upload URL without receiving a new signature from the server and perform a denial of service (DoS) attack.
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Vulnerable software versions
activestorage: 5.2.0 - 6.0.3 rc1
Fixed software versions
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?