CVE-2021-29479
Ratpack Redirect Cache Poisoning Vulnerability
Description
Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, a user supplied `X-Forwarded-Host` header can be used to perform cache poisoning of a cache fronting a Ratpack server if the cache key does not include the `X-Forwarded-Host` header as a cache key. Users are only vulnerable if they do not configure a custom `PublicAddress` instance. For versions prior to 1.9.0, by default, Ratpack utilizes an inferring version of `PublicAddress` which is vulnerable. This can be used to perform redirect cache poisoning where an attacker can force a cached redirect to redirect to their site instead of the intended redirect location. The vulnerability was patched in Ratpack 1.9.0. As a workaround, ensure that `ServerConfigBuilder::publicAddress` correctly configures the server in production.
INFO
Published Date :
June 29, 2021, 3:15 p.m.
Last Modified :
July 8, 2021, 3:42 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.7
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-2021-29479.
| URL | Resource |
|---|---|
| https://github.com/ratpack/ratpack/security/advisories/GHSA-w6rq-6h34-vh7q | Third Party Advisory |
| https://portswigger.net/web-security/web-cache-poisoning | Exploit 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-2021-29479 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-29479 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jul. 08, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:H/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/ratpack/ratpack/security/advisories/GHSA-w6rq-6h34-vh7q No Types Assigned https://github.com/ratpack/ratpack/security/advisories/GHSA-w6rq-6h34-vh7q Third Party Advisory Changed Reference Type https://portswigger.net/web-security/web-cache-poisoning No Types Assigned https://portswigger.net/web-security/web-cache-poisoning Exploit, Third Party Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:ratpack_project:ratpack:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-29479 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-2021-29479
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.01%
score
0.38572
percentile