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CVE-2016-4312

7.5 · HIGH

XML external entity (XXE) vulnerability in the XACML flow feature in WSO2 Identity Server 5.1.0 before WSO2-CARBON-PATCH-4.4.0-0231 allows remote authenticated users with access to XACML features t…

Published Feb 17, 2017CWE-611EPSS 6.00%

Overview

CVE-2016-4312 is a high-severity vulnerability. It was published on February 17, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

XML external entity (XXE) vulnerability in the XACML flow feature in WSO2 Identity Server 5.1.0 before WSO2-CARBON-PATCH-4.4.0-0231 allows remote authenticated users with access to XACML features to read arbitrary files, cause a denial of service, conduct server-side request forgery (SSRF) attacks, or have unspecified other impact via a crafted XACML request to entitlement/eval-policy-submit.jsp. NOTE: this issue can be combined with CVE-2016-4311 to exploit the vulnerability without credentials.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refhyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-External-Entity.txtRefpacketstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injection.htmlRefwww.securityfocus.com/archive/1/539199/100/0/threadedRefwww.securityfocus.com/bid/92485Refdocs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0096Refwww.exploit-db.com/exploits/40239/Refhyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-External-Entity.txtRefpacketstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injection.htmlRefwww.securityfocus.com/archive/1/539199/100/0/threadedRefwww.securityfocus.com/bid/92485

How CyberStrike helps

Frequently asked questions

What is CVE-2016-4312?

CVE-2016-4312 is a high-severity vulnerability. It was published on February 17, 2017 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2016-4312?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2016-4312?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-4312?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-4312 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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