ZDI-21-458: Oracle OSS Support Tools Diagnostic Assistant XML External Entity Processing Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Oracle OSS Support Tools. Authentication is required to exploit this vulnerability. The specific flaw exists within the Diagnostic Assistant component. 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 | Affected Version | How to fix |
|---|---|---|
| Oracle OSS Support Tools |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-21-458?
ZDI-21-458 has been classified with a critical severity level due to its potential to allow sensitive information disclosure.
How do I fix ZDI-21-458?
To fix ZDI-21-458, patch the Oracle OSS Support Tools as recommended in the latest security updates provided by Oracle.
Who is affected by ZDI-21-458?
ZDI-21-458 affects installations of the Oracle OSS Support Tools that have the Diagnostic Assistant component.
Is authentication required to exploit ZDI-21-458?
Yes, authentication is required for attackers to exploit the vulnerability described in ZDI-21-458.
What type of data can be disclosed due to ZDI-21-458?
ZDI-21-458 allows remote attackers to disclose sensitive information stored within the affected Oracle OSS Support Tools installations.
- agent/references
- agent/type
- agent/softwarecombine
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-458
- alias/ZDI-CAN-12564
- alias/CVE-2021-2303
- agent/software-canonical-lookup
- agent/severity
- agent/title
- agent/tags
- agent/description
- agent/event
- agent/source
- vendor/oracle
- canonical/oracle oss support tools