Given the related, chainable nature of these vulnerabilities, Onapsis Research Labs has dubbed this family of exploits “P4CHAINS.” Though chained vulnerabilities are not typically easy to exploit, they can be a favorite tactic for more sophisticated attackers.
• Registration of JCo connections to arbitrary SAP systems, opening the door to execute RFC functions against the targeted system.Without taking notice of these potentially severe vulnerabilities and ensuring that entry points have been secured, organizations may be exposing their critical business applications to high levels of risk.
Specifically, in the case of P4CHAINS, it can be extremely difficult for organizations to validate whether they are exposed or not. Determining whether an organization has internet-facing HTTP protocols can be the difference in preventing a serious attack, and this process requires organizations to have specific intel regarding their potential entry points.
Another important step is to restrict access to the P4 port only to trusted networks. This will help minimize the likelihood of an unauthenticated threat actor. Additionally, all HTTP services and ports should be closely monitored for any potential anomalies.
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