SB2021101937 - Multiple vulnerabilities in Oracle WebCenter Sites
Published: October 19, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) XML External Entity injection (CVE-ID: CVE-2019-12415)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input when using the tool XSSFExportToXml to convert user-provided Microsoft Excel documents. A remote attacker can pass a specially crafted XML code to the affected application and read files from the local filesystem or from internal network resources on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
2) Resource exhaustion (CVE-ID: CVE-2021-27906)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing PDF files. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
3) Input validation error (CVE-ID: CVE-2021-26272)
The vulnerability allows a remote attacker to perform a regular expression denial of service (ReDoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can trick the victim to paste a specially crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin) and perform a regular expression denial of service (ReDoS) attack.
4) Improper input validation (CVE-ID: CVE-2020-5258)
The vulnerability allows a remote authenticated user to gain access to sensitive information.
The vulnerability exists due to improper input validation within the Cluster: Packaging (dojo) component in MySQL Cluster. A remote authenticated user can exploit this vulnerability to gain access to sensitive information.
5) Deserialization of Untrusted Data (CVE-ID: CVE-2021-29505)
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data. A remote user can pass specially crafted XML data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) XML External Entity injection (CVE-ID: CVE-2019-13990)
The vulnerability allows a remote attacker to conduct an XML External Entity (XXE) attack on a targeted system.
The vulnerability exists due to insufficient validation of user-supplied XML input in the "initDocumentParser" function in the "xml/XMLSchedulingDataProcessor.java" file. A remote authenticated attacker can submit a malicious job description to the targeted system and conduct an XXE attack.
Remediation
Install update from vendor's website.