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CVE-2021-29485 Detail

Description

Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, a malicious attacker can achieve Remote Code Execution (RCE) via a maliciously crafted Java deserialization gadget chain leveraged against the Ratpack session store. If one's application does not use Ratpack's session mechanism, it is not vulnerable. Ratpack 1.9.0 introduces a strict allow-list mechanism that mitigates this vulnerability when used. Two possible workarounds exist. The simplest mitigation for users of earlier versions is to reduce the likelihood of attackers being able to write to the session data store. Alternatively or additionally, the allow-list mechanism could be manually back ported by providing an alternative implementation of `SessionSerializer` that uses an allow-list.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/ratpack/ratpack/security/advisories/GHSA-hc33-32vw-rpp9 Third Party Advisory 
https://github.com/ratpack/ratpack/security/advisories/GHSA-hc33-32vw-rpp9 Third Party Advisory 
https://mvnrepository.com/artifact/io.ratpack/ratpack-core Release Notes  Third Party Advisory 
https://mvnrepository.com/artifact/io.ratpack/ratpack-core Release Notes  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-502 Deserialization of Untrusted Data cwe source acceptance level NIST   GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-29485
NVD Published Date:
06/29/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.