Cyber Risks · Qualys Blog

Ripple20: Multiple Vulnerabilities Identified in Treck TCP/IP Stack | Qualys

Summary: The JSOF research lab discovered Ripple20, a set of 19 vulnerabilities in the Treck TCP/IP stack used in embedded systems, affecting hundreds of devices or more. Four of the vulnerabilities - CVE-2020-11896, CVE-2020-11897, CVE-2020-11898, and CVE-2020-11901 - are critical with CVSS scores over 9 and enable remote code execution, and one sits in the DNS protocol and may be exploitable by a remote attacker even on devices not connected to the internet.

Why it matters: Patches are not yet available for all vendors, and one critical flaw in the DNS protocol can be reached on devices that are not connected to the internet at all - so the usual assumption that air-gapped or internal-only equipment is out of reach does not hold here.

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Topics
Vulnerabilities & Patching
Mentions
CVE-2020-11896CVE-2020-11897CVE-2020-11898CVE-2020-11899CVE-2020-11900CVE-2020-11901CVE-2020-11904CVE-2020-11905CVE-2020-11906CVE-2020-11907CVE-2020-11909CVE-2020-11910CVE-2020-11911CVE-2020-11912CVE-2020-11914
Related
CVE-2020-11899: Treck TCP/IP stack Out-of-Bounds Read Vulnerability Known Exploited Vulnerabilities · Mar 03, 2022