Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2022-2576
CVE-2022-2576:
Java vulnerability analysis and mitigation
Overview
In Eclipse Californium versions 2.0.0 to 2.7.2 and 3.0.0-3.5.0, a DTLS resumption handshake vulnerability was discovered where the system falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. This vulnerability was assigned CVE-2022-2576 and affects the DTLS 1.2 protocol implementation. The issue specifically occurs when DTLSVERIFYPEERSONRESUMPTION_THRESHOLD values are set larger than 0 (Eclipse Bug).
Technical details
The vulnerability stems from an incorrect behavior order in the DTLS handshake process. When the server receives a ClientHello message with a valid Session ID, it responds directly with ServerHello, ChangeCipherSpec, and Finished messages without performing a stateless cookie exchange during session resumption. This particularly affects scenarios involving certificate-based cipher suites. The vulnerability has been classified under CWE-408 (Incorrect Behavior Order: Early Amplification) and received a CVSS v3.1 Base Score of 7.5 HIGH (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) (NVD Database).
Impact
The vulnerability can result in two primary security impacts: message amplification that can be used for DDoS attacks against other peers, and high CPU load leading to DoS conditions on the affected server itself. This is particularly severe when used with certificate-based cipher suites (Eclipse Bug).
Mitigation and workarounds
The issue has been fixed in Eclipse Californium versions 2.7.3 and 3.6.0. As a workaround for affected versions, users can set DTLSVERIFYPEERSONRESUMPTION_THRESHOLD to 0, which ensures that HelloVerifyRequest is always used. The permanent fix ensures that HelloVerifyRequest is always used when falling back to a full handshake (Eclipse Bug).
Additional resources
Source: This report was generated using AI
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Get a personalized demo
Ready to see Wiz in action?
“Best User Experience I have ever seen, provides full visibility to cloud workloads.”
David EstlickCISO
“Wiz provides a single pane of glass to see what is going on in our cloud environments.”
Adam FletcherChief Security Officer
“We know that if Wiz identifies something as critical, it actually is.”
Greg PoniatowskiHead of Threat and Vulnerability Management