CVE-2016-4312

moderate-risk
Published 2017-02-17

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.

Do I need to act?

~
5.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
40239
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Wso2

References (12)

Exploit http://hyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-Exter...
Exploit http://packetstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injec...
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/
Exploit http://hyp3rlinx.altervista.org/advisories/WSO2-IDENTITY-SERVER-v5.1.0-XML-Exter...
Exploit http://packetstormsecurity.com/files/138329/WSO2-Identity-Server-5.1.0-XML-Injec...
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/
42
/ 100
moderate-risk
Severity 22/34 · High
Exploitability 15/34 · Moderate
Exposure 5/34 · Minimal