National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-4312 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 1.6


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.0 MEDIUM
Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 6.8


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://hyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-External-Entity.txt Exploit Third Party Advisory
http://packetstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injection.html Exploit Third Party Advisory VDB Entry
http://www.securityfocus.com/archive/1/539199/100/0/threaded
http://www.securityfocus.com/bid/92485 Third Party Advisory VDB Entry
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0096 Patch Vendor Advisory
https://www.exploit-db.com/exploits/40239/ Exploit Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of XML External Entity Reference (CWE-611)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:wso2:identity_server:5.1.0
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4312
NVD Published Date:
02/16/2017
NVD Last Modified:
10/09/2018