CVE-2015-4852 on CISA KEV

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

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.oracle.com — http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
• www.oracle.com — http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html
• www.oracle.com — http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
• www.oracle.com — http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
• github.com — https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py
• www.oracle.com — http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
• blogs.oracle.com — https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852
• www.securitytracker.com — http://www.securitytracker.com/id/1038292
• www.securityfocus.com — http://www.securityfocus.com/bid/77539
• www.oracle.com — http://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.ht…
• www.openwall.com — http://www.openwall.com/lists/oss-security/2015/11/17/19
• www.exploit-db.com — https://www.exploit-db.com/exploits/42806/
• foxglovesecurity.com — http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-…
• packetstormsecurity.com — http://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserializati…
• www.exploit-db.com — https://www.exploit-db.com/exploits/46628/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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