CVE-2015-4852
CRITICAL severity · CVSS 9.8 · Insecure deserialization · actively exploited (CISA KEV)
9.8CVSS CRITICAL ● exploited
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2021-11-03. US federal agencies must patch by 2022-05-03.
Summary
The WLS Security component in Oracle WebLogic Server 10.3.6.0, 12.1.2.0, 12.1.3.0, and 12.2.1.0 allows remote attackers to execute arbitrary commands via a crafted serialized Java object in T3 protocol traffic to TCP port 7001, related to oracle_common/modules/com.bea.core.apache.commons.collections.jar. NOTE: the scope of this CVE is limited to the WebLogic Server product.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)93%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html ↗
Additional information
- NVD record
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.htmlPatch
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlPatch
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlPatch
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlPatch
- http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.htmlAdvisory
- http://www.openwall.com/lists/oss-security/2015/11/17/19Advisory
- http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/Exploit
- http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserialization-Remote-Code-Execution.htmlAdvisory