What is the severity of CVE-2019-5434?

CVE-2019-5434 has been rated as a high-severity vulnerability due to the potential for remote code execution.

How do I fix CVE-2019-5434?

To fix CVE-2019-5434, ensure that you upgrade to the latest version of Revive Adserver that is beyond 4.2.0.

What types of attacks can exploit CVE-2019-5434?

CVE-2019-5434 can be exploited to perform various attacks, including remote code execution and other serialize-related PHP vulnerabilities.

Which versions of Revive Adserver are affected by CVE-2019-5434?

CVE-2019-5434 affects all versions of Revive Adserver prior to 4.2.0.

Is the CVE-2019-5434 vulnerability specific to any component?

The vulnerability in CVE-2019-5434 is specifically found in the XML-RPC invocation script related to the "openads.spc" RPC method.

Vulnerability/
CVE-2019-5434

critical

9.8

CWE

502

6/5/2019

4/8/2024

CVE-2019-5434

First published: Mon May 06 2019(Updated: )

An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0.

Credit: support@hackerone.com

Affected Software	Affected Version	How to fix
Revive Adserver	<4.2.0

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Frequently Asked Questions

What is the severity of CVE-2019-5434?
CVE-2019-5434 has been rated as a high-severity vulnerability due to the potential for remote code execution.
How do I fix CVE-2019-5434?
To fix CVE-2019-5434, ensure that you upgrade to the latest version of Revive Adserver that is beyond 4.2.0.
What types of attacks can exploit CVE-2019-5434?
CVE-2019-5434 can be exploited to perform various attacks, including remote code execution and other serialize-related PHP vulnerabilities.
Which versions of Revive Adserver are affected by CVE-2019-5434?
CVE-2019-5434 affects all versions of Revive Adserver prior to 4.2.0.
Is the CVE-2019-5434 vulnerability specific to any component?
The vulnerability in CVE-2019-5434 is specifically found in the XML-RPC invocation script related to the "openads.spc" RPC method.

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