CVE-2021-21349 – com.thoughtworks.xstream:xstream

Package

Manager: maven
Name: com.thoughtworks.xstream:xstream
Vulnerable Version: >=0 <1.4.16

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

EPSS: 0.04076 pctl0.881

Details

A Server-Side Forgery Request can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host ### Impact The vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. ### Patches If you rely on XStream's default blacklist of the [Security Framework](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.16. ### Workarounds See [workarounds](https://x-stream.github.io/security.html#workaround) for the different versions covering all CVEs. ### References See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for [CVE-2021-21349](https://x-stream.github.io/CVE-2021-21349.html). ### Credits The vulnerability was discovered and reported by threedr3am. ### For more information If you have any questions or comments about this advisory: * Open an issue in [XStream](https://github.com/x-stream/xstream/issues) * Contact us at [XStream Google Group](https://groups.google.com/group/xstream-user)

Metadata

Created: 2021-03-22T23:29:19Z
Modified: 2022-02-08T21:32:19Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-f6hm-88x3-mfjv/GHSA-f6hm-88x3-mfjv.json
CWE IDs: ["CWE-502", "CWE-918"]
Alternative ID: GHSA-f6hm-88x3-mfjv
Finding: F100
Auto approve: 1