SB2016070803 - Remote code execution in Apache XML-RPC library

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Deserialization of untrusted data (CVE-ID: CVE-2016-5003)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper deserialization of untrusted Java objects. A remote attacker can send a request that submits a malicious serialized Java object in an <ex:serializable> element and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Deserialization of Untrusted Data (CVE-ID: CVE-2019-17570)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the org.apache.xmlrpc.parser.XmlRpcResponseParser:addResult() method in Apache XML-RPC (aka ws-xmlrpc) library. A malicious XML-RPC server could target a XML-RPC client causing it to execute arbitrary code.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://0ang3el.blogspot.com/2016/07/beware-of-ws-xmlrpc-library-in-your.html
• http://www.openwall.com/lists/oss-security/2020/01/24/2
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-17570;
• https://lists.apache.org/thread.html/846551673bbb7ec8d691008215384bcef03a3fb004d2da845cfe88ee%401390230951%40%3Cdev.ws.apache.org%3E