Critical RCE Vulnerability Found in Internet Control Message Protocol (ICMP)

CVE-2023-23415 is a critical remote code execution vulnerability affecting the Internet Control Message Protocol (ICMP). An attacker could exploit the vulnerability by sending a specially crafted ICMP packet containing a low-level protocol error and a fragmented IP packet inside its header. If an application on the target system is bound to a raw socket, the attacker may be able to execute arbitrary code on the system, potentially giving them full control over the system.

An attacker could exploit this vulnerability by sending a specially crafted ICMP packet to a vulnerable system. The packet would contain a low-level protocol error along with a fragmented IP packet inside its header.

When the vulnerable system receives this packet, it may attempt to reassemble the IP packet inside the ICMP packet. However, due to the way the packet is crafted, the system may attempt to access memory that it should not have access to, which could result in a buffer overflow or other memory-related error.

If the system is running an application that is bound to a raw socket, the attacker may be able to execute arbitrary code on the system, potentially giving them complete control over the system. The exact details of the attack will depend on the specific application and system configuration, but in general, this vulnerability could be used to launch a remote code execution attack.

It’s important to note that this vulnerability requires the target system to have an application bound to a raw socket in order to be exploited. However, if this condition is met, the vulnerability could be quite serious and could potentially be used to compromise a wide range of systems.

For more visit: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23415