A series of 19 different security vulnerabilities discovered dubbed Ripple20 affecting hundreds of millions of IoT devices.
By exploiting the vulnerabilities attackers can steal data from the printer, change the behavior of devices, or hide malicious code within embedded devices for years.
The 19 vulnerabilities dubbed Ripple20 discovered by Israeli cybersecurity company JSOF. Department of Homeland Security and CISA ICS-CERT also released a warning about the newly discovered vulnerabilities.
The vulnerabilities reside in the low-level TCP/IP software library developed by Treck in the 90s, the same library is used by a number of devices for the past 20 years.
Ripple20 classified as a supply chain vulnerability that impacts impact a wide range of industries, applications, companies, and people.
The vulnerability affects devices in various industries including medical, healthcare, data centers, enterprises, telecom, oil, gas, nuclear, transportation, consumer devices, and other critical infrastructure.
JSOF has demonstrated an explanation of how these vulnerabilities affect different devices.
Out of 19 vulnerabilities, 4 of them have a CVSS v3 base score of more than 9, which allows attacks to perform remote code execution.
Improper handling of length parameter inconsistency in IPv4/UDP component when handling a packet sent by an unauthorized network attacker. This vulnerability may result in remote code execution and receives a CVSS v3 base score of 10.0.
Improper handling of length parameter inconsistency in IPv6 component when handling a packet sent by an unauthorized network attacker. This vulnerability may result in possible out-of-bounds write and receives a CVSS v3 base score of 10.0.
Improper handling of length parameter inconsistency in IPv4/ICMPv4 component when handling a packet sent by an unauthorized network attacker. This vulnerability may result in out-of-bounds Read and receives a CVSS v3 base score of 9.1.
Improper input validation in the DNS resolver component when handling a packet sent by an unauthorized network attacker. This vulnerability may result in remote code execution and receives a CVSS v3 base score of 9.0.
The vulnerabilities have been reported to vendors, here is the list of vendors that are affected or might be affected with Ripple20.
By exploiting the vulnerabilities attackers can take control over a device from outside of the network and utilize the same to hide within the network for years.
Researchers, CERT/CC and CISA ICS-CERT recommends following mitigations
Besides this, it is also recommended to block anomalous IP traffic, deep packet inspection, and to enable secure remote access.
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