CVE-2021-29505highCWE-502CWE-94

CVE-2021-29505: high-severity vulnerability in x-stream xstream

XStream is vulnerable to a Remote Command Execution attack

Published · Updated

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58Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 7.5epss 77%
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Affected
10 products
Red Hat BPM Suite 6 · Red Hat Integration Camel Quarkus 1 · Red Hat JBoss A-MQ 6 · Red Hat JBoss BRMS 5 · Red Hat JBoss BRMS 6 · and others 5
workaround: Depending on the version of XStream used there are various usage patterns that mitigate this flaw, though we would strongly recommend using the allow list approach if at all possible as there are likely more class combinations the deny list…
Fixed
10 products (18 components)
Red Hat Enterprise Linux Client Optional (v. 7) · Red Hat Enterprise Linux ComputeNode Optional (v. 7) · Red Hat Enterprise Linux Server Optional (v. 7) · Red Hat Enterprise Linux Workstation Optional (v. 7) · RHDM 7.12.0 · and others 5
fix ↗
Not affected
2 products (4 components) — because the vulnerable code is not present in the product
Red Hat OpenShift Container Platform 3.11 · Red Hat OpenShift Container Platform 4
XStream is software for serializing Java objects to XML and back again. A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types is affected. The vulnerability is patched in version 1.4.17.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
x-stream · xstream
Related CVEs — x-stream xstream

In the same product, most dangerous first.

CVE-2021-39144HIGHXStream is vulnerable to a Remote Command Execution attackEPSS 98.1%KEVCVE-2020-26217HIGHRemote Code Execution in XStreamEPSS 85.0%CVE-2020-26259MEDIUMXStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshallingEPSS 82.4%CVE-2021-21351MEDIUMXStream is vulnerable to an Arbitrary Code Execution attackEPSS 82.1%CVE-2020-26258MEDIUMServer-Side Forgery Request can be activated unmarshalling with XStreamEPSS 81.8%CVE-2021-21341HIGHXStream can cause a Denial of ServiceEPSS 77.8%