High severity · published Feb 17, 2017
CVE-2016-4312
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…
7.5
CVSS
6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.0% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IS
Identity Server · Wso2
5.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4312
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4312
Exploit
http://hyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-External-Entity.txt
Exploit
http://packetstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injection.html
www.securityfocus.com
http://www.securityfocus.com/archive/1/539199/100/0/threaded
Third Party Advisory
http://www.securityfocus.com/bid/92485
Patch
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0096
Exploit
https://www.exploit-db.com/exploits/40239/
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