CVE-2020-15237

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.

Risk Information

Base Score

5.9

MODERATE

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Score

Exploitation Probability

0.316

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2020-15237 are fixed in Ruby-shrine 3.3.0	Windows
Vulnerabilities CVE-2020-15237 are fixed in Ruby-shrine for Linux 3.3.0	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234