SB2020102704 - Multiple vulnerabilities in Oracle Communications Application Session Controller
Published: October 27, 2020 Updated: July 14, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Improper Certificate Validation (CVE-ID: CVE-2020-9488)
The vulnerability allows a remote attacker to perform man-in-the-middle attack.
The vulnerability exists due to the Apache Log4j SMTP appender does not validate SSL certificates. A remote attacker can perform a MitM attack, intercept and decrypt network traffic.
2) Cross-site scripting (CVE-ID: CVE-2020-11022)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the regex operation in "jQuery.htmlPrefilter". A remote attacker can pass specially crafted data to the application that uses .html()</code>, <code>.append() or similar methods for it and execute arbitrary JavaScript code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
3) Operation on a Resource after Expiration or Release (CVE-ID: CVE-2019-17638)
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an exception to produce an HTTP 431 error. When this happens, the ByteBuffer containing the HTTP response headers is released back to the ByteBufferPool twice. Because of this double release, two threads can acquire the same ByteBuffer from the pool and while thread1 is about to use the ByteBuffer to write response1 data, thread2 fills the ByteBuffer with response2 data. Thread1 then proceeds to write the buffer that now contains response2 data. This results in client1, which issued request1 and expects responses, to see response2 which could contain sensitive data belonging to client2 (HTTP session ids, authentication credentials, etc.).
4) Exposed dangerous method or function (CVE-ID: CVE-2020-10683)
The vulnerability allows a remote attacker to abuse implemented functionality.
The vulnerability exists due to dom4j allows by default external DTDs and External Entities. A remote attacker can abuse this functionality and perform XXE attack against application that uses dom4j default configuration.
Remediation
Install update from vendor's website.