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  2. CVE-2016-4312
ID CVE-2016-4312
Summary 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.
References
Vulnerable Configurations
  • cpe:2.3:a:wso2:identity_server:5.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:wso2:identity_server:5.1.0:*:*:*:*:*:*:*
CVSS
Base: 6.0 (as of 09-10-2018 - 20:00)
Impact:
Exploitability:
CWE CWE-611
CAPEC
  • XML External Entities Blowup
    This attack takes advantage of the entity replacement property of XML where the value of the replacement is a URI. A well-crafted XML document could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.
Access
VectorComplexityAuthentication
NETWORK MEDIUM SINGLE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:M/Au:S/C:P/I:P/A:P
refmap via4
bid 92485
bugtraq 20160813 WSO2 IDENTITY-SERVER v5.1.0 XML External-Entity
confirm https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0096
exploit-db 40239
misc
Last major update 09-10-2018 - 20:00
Published 17-02-2017 - 02:59
Last modified 09-10-2018 - 20:00
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