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CVE-2021-39139

HIGHCVSS 8.8/10EPSS 4.58%

Last modified

CVE-2021-39139 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. EPSS estimates a 4.58% chance of exploitation in the next 30 days.

Description

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. A user is only affected if using the version out of the box with JDK 1.7u21 or below. However, this scenario can be adjusted easily to an external Xalan that works regardless of the version of the Java runtime. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
4.58%

90.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
XstreamXstream< 1.4.18
DebianDebian Linux9.0
DebianDebian Linux10.0
DebianDebian Linux11.0
FedoraprojectFedora33
FedoraprojectFedora34
FedoraprojectFedora35
NetappSnapmanagerAll versions
OracleBusiness Activity Monitoring12.2.1.4.0
OracleCommerce Guided Search11.3.2
OracleCommunications Billing And Revenue Management Elastic Charging Engine11.3
OracleCommunications Billing And Revenue Management Elastic Charging Engine12.0
OracleCommunications Cloud Native Core Automated Test Suite1.9.0
OracleCommunications Cloud Native Core Binding Support Function1.10.0
OracleCommunications Cloud Native Core Policy1.14.0
OracleCommunications Unified Inventory Management7.3.4
OracleCommunications Unified Inventory Management7.3.5
OracleCommunications Unified Inventory Management7.4.0
OracleCommunications Unified Inventory Management7.4.1
OracleCommunications Unified Inventory Management7.4.2
OracleRetail Xstore Point Of Service16.0.6
OracleRetail Xstore Point Of Service17.0.4
OracleRetail Xstore Point Of Service18.0.3
OracleRetail Xstore Point Of Service19.0.2
OracleRetail Xstore Point Of Service20.0.1
OracleUtilities Framework4.2.0.2.0
OracleUtilities Framework4.2.0.3.0
OracleUtilities Framework4.3.0.1.0
OracleUtilities Framework4.3.0.6.0
OracleUtilities Framework4.4.0.0.0
OracleUtilities Framework4.4.0.2.0
OracleUtilities Framework4.4.0.3.0
OracleUtilities Testing Accelerator6.0.0.1.1
OracleWebcenter Portal12.2.1.3.0
OracleWebcenter Portal12.2.1.4.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2021-39139?
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. A user is only affected if using the version out of the box with JDK 1.7u21 or below. However, this scenario can be adjusted easily to an external Xalan that works regardless of the version of the Java runtime. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
How severe is CVE-2021-39139?
CVE-2021-39139 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 4.58% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39139?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39139?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST