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Onapsis Security Advisory ONAPSIS-2014-034: SAP Business Objects Search Token Privilege Escalation via CORBA
By exploiting this vulnerability a remote and potentially unauthenticated attacker would be able to access or modify any information stored on the SAP BusineesObjects server. The attacker could also connect to the business systems depending on the configuration of the BO infrastructure.
Risk Level: Critical
BussinessObjects Edge 4.1 (Check SAP Note 2039905 for detailed information on affected releases)
SAP Business Objects allows a remote user, potentially using a Guest account if enabled, to perform CORBA calls to resources that should be restricted by correctly checking the privileges of the user performing the request.
Using CORBA calls it is possible to escalate privileges from any valid user to System privileges in BusinsessObjects. The System Account can perform any action in BusinessObjects.
An unauthenticated attacker (if Guest user is enabled, so no credentials are required) can obtain the SI_PLATFORM_SEARCH_SERVER_LOGON_TOKEN via CORBA. This token can be used, also via CORBA, to perform actions as SYSTEM, thus escalating privileges.
SAP has released SAP Note 2039905 which provide patched versions of the affected components.
The patches can be downloaded from https://service.sap.com/sap/support/notes/2039905
Onapsis strongly recommends SAP customers to download the related security fixes and apply them to the affected components in order to reduce business risks.
2014-02-25: Onapsis provides vulnerability information to SAP AG. 2014-02-26: SAP confirms having the information of vulnerability. 2014-09-10: SAP releases security patches, assigning a CVSS score of 6.0. 2014-12-16: Onapsis notifies availability of security advisory.
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