cbcvebase.
CVE-2021-21350
published 2021-03-23

CVE-2021-21350: 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…

PriorityP267critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
15.23%
96.8th percentile
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 to execute arbitrary code 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

43 ranges· showing 25
VendorProductVersion rangeFixed in
apacheactivemq< 5.15.145.15.14
apacheactivemq——
apacheactivemq——
apachejmeter< 5.55.5
debiandebian_linux——
debiandebian_linux——
debiandebian_linux——
debianlibxstream-java< libxstream-java 1.4.15-2 (bookworm)libxstream-java 1.4.15-2 (bookworm)
fedoraprojectfedora——
fedoraprojectfedora——
fedoraprojectfedora——
oraclebanking_enterprise_default_management——
oraclebanking_enterprise_default_management——
oraclebanking_platform——
oraclebanking_platform——
oraclebanking_platform——
oraclebanking_platform——
oraclebanking_virtual_account_management——
oraclebanking_virtual_account_management——
oraclebanking_virtual_account_management——
oraclebusiness_activity_monitoring——
oraclebusiness_activity_monitoring——
oraclebusiness_activity_monitoring——
oraclecommunications_billing_and_revenue_management_elastic_charging_engine——
oraclecommunications_policy_management——

Detection & IOCsextracted from sources · hover to see the quote

  • →The vulnerability involves unsafe deserialization of com.sun.org.apache.bcel.internal.util.ClassLoader via XStream; monitor for XML input streams referencing this class ↗
  • →Exploitation requires manipulation of the processed XML input stream passed to XStream; inspect/log all XML deserialization input for unexpected class references ↗
  • ·Users who configured XStream's security framework with a whitelist limited to the minimal required types are NOT affected; only those relying on the default blacklist are vulnerable ↗
  • ·OpenShift Container Platform Jenkins package is not affected due to JEP-200 and JEP-228 protections already in place ↗
  • ·Red Hat JBoss AMQ 6 distributes affected XStream versions but is not susceptible because an allowlist-based XStream security framework is already in place ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
ghsa9.8CRITICAL
osv9.8CRITICAL
vendor_ubuntu8.0HIGH
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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