What is the CVSS score of CVE-2021-21345?

CVE-2021-21345 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 72.3%.

Is there a public PoC exploit available for CVE-2021-21345?

Yes, a public proof-of-concept exploit is available for CVE-2021-21345. Prioritise patching immediately. EPSS: 72.3%.

Is there a patch available for CVE-2021-21345?

Yes, a patch is available for CVE-2021-21345. Update the affected software to the latest version immediately.

Java CVE-2021-21345

CRITICAL

Code Injection (CWE-94)

2021-03-23 security-advisories@github.com

RCE Code Injection Java Oncommand Insight Activemq Jmeter Xstream Debian Linux Fedora Banking Enterprise Default Management Banking Platform Banking Virtual Account Management Business Activity Monitoring Communications Billing And Revenue Management Elastic Charging Engine Communications Policy Management Communications Unified Inventory Management Peoplesoft Enterprise Peopletools Retail Xstore Point Of Service Webcenter Portal

9.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 23, 2021 - 00:15 nvd

CRITICAL 9.9

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1,343 maven packages depend on com.thoughtworks.xstream:xstream (145 direct, 1,200 indirect)

Ecosystem-wide dependent count for version 1.4.16.

DescriptionNVD

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the host 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

AnalysisAI

XStream is a Java library to serialize objects to XML and back again. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the host 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16. Affected products include: Netapp Oncommand Insight, Apache Activemq, Apache Jmeter, Xstream, Debian Debian Linux. Version information: version 1.4.16.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.