CVE-2020-15237
Apache Shrine Timing Attack
Description
In Shrine before version 3.3.0, when using the `derivation_endpoint` plugin, it's 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.
INFO
Published Date :
Oct. 5, 2020, 7:15 p.m.
Last Modified :
Nov. 21, 2024, 5:05 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-15237.
| URL | Resource |
|---|---|
| https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0 | Patch Third Party Advisory |
| https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp | Third Party Advisory |
| https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0 | Patch Third Party Advisory |
| https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15237 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15237 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0 Added Reference https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 19, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0 No Types Assigned https://github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0 Patch, Third Party Advisory Changed Reference Type https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp No Types Assigned https://github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:shrinerb:shrine:*:*:*:*:*:ruby:*:* versions up to (excluding) 3.3.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15237 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-15237
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.32 }} -0.30%
score
0.51633
percentile