ZDI-21-887: Oracle Business Intelligence DOMParser XML External Entity Processing Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Oracle Business Intelligence. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DOMParser endpoint, which listens on TCP port 9502 by default. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of the service account.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-21-887?
The severity of ZDI-21-887 is classified as critical due to the potential for remote information disclosure.
How do I fix ZDI-21-887?
To fix ZDI-21-887, it is recommended to apply the latest security patches provided by Oracle for Business Intelligence Enterprise Edition.
Does ZDI-21-887 require authentication to exploit?
No, ZDI-21-887 can be exploited without authentication, allowing attackers to disclose sensitive information.
What systems are affected by ZDI-21-887?
ZDI-21-887 affects installations of Oracle Business Intelligence Enterprise Edition.
What kind of information can be disclosed by exploiting ZDI-21-887?
Exploiting ZDI-21-887 can lead to the disclosure of sensitive information from affected Oracle Business Intelligence installations.