CVE-2015-4852

Oracle WebLogic Server Deserialization of Untrusted Data

9.8 CRITICALActively exploited (CISA KEV)Public exploitEPSS 96.0%

Published18 Nov 2015
Added to CISA KEV3 Nov 2021
Remediation due3 May 2022

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Oracle Storagetek Tape Analytics Sw Tool2.3

Oracle Virtual Desktop Infrastructure≤ 3.5.2

Oracle Weblogic Server10.3.6.0.0 · 12.1.2.0.0 · 12.1.3.0.0 · 12.2.1.0.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

References

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.htmlExploitThird Party AdvisoryVDB Entry
https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852Broken Link
https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.pyProduct
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4852US Government Resource
https://www.exploit-db.com/exploits/42806/ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/46628/ExploitThird Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2015/11/17/19Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.htmlPatch
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlPatchVendor Advisory

and 6 more references

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2015-4852 being actively exploited?

Yes. CVE-2015-4852 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2015-4852?

CVE-2015-4852 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 96.0% probability of exploitation.

Which products are affected by CVE-2015-4852?

Affected products include Oracle Storagetek Tape Analytics Sw Tool, Oracle Virtual Desktop Infrastructure, Oracle Weblogic Server.

How do I fix CVE-2015-4852?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2015-4852 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.