Advisory Details

July 22nd, 2021

Oracle Business Intelligence BIRemotingServlet Deserialization of Untrusted Data Remote Code Execution Vulnerability

CVE ID	CVE-2021-2456
CVSS SCORE	9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Oracle
AFFECTED PRODUCTS	Business Intelligence
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of Oracle Business Intelligence. Authentication is not required to exploit this vulnerability. The specific flaw exists within BIRemotingServlet. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of Administrator.
ADDITIONAL DETAILS	Oracle has issued an update to correct this vulnerability. More details can be found at: https://www.oracle.com/security-alerts/cpujul2021.html
DISCLOSURE TIMELINE	2021-03-18 - Vulnerability reported to vendor 2021-07-22 - Coordinated public release of advisory
CREDIT	peterjson of RedTeam@VNG Corporation

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