Security Advisory

CVE-2020-15237

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2020-10-05 18:30:14

Last updated 2024-08-04 13:08:22

Assigner GitHub_M

State PUBLISHED

Description

In Shrine before version 3.3.0, when using the `derivation_endpoint` plugin, its possible for the attacker to use a timing attack to guess the signature of the derivation URL. The problem has been fixed by comparing sent and calculated signature in constant time, using `Rack::Utils.secure_compare`. Users using the `derivation_endpoint` plugin are urged to upgrade to Shrine 3.3.0 or greater. A possible workaround is provided in the linked advisory.

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