CVE-2023-38505

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Summary

CVECVE-2023-38505
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-27 19:15:00 UTC
Updated2023-08-03 13:40:00 UTC
DescriptionDietPi-Dashboard is a web dashboard for the operating system DietPi. The dashboard only allows for one TLS handshake to be in process at a given moment. Once a TCP connection is established in HTTPS mode, it will assume that it should be waiting for a handshake, and will stay this way indefinitely until a handshake starts or some error occurs. In version 0.6.1, this can be exploited by simply not starting the handshake, preventing any other TLS handshakes from getting through. An attacker can lock the dashboard in a state where it is waiting for a TLS handshake from the attacker, who won't provide it. This prevents any legitimate traffic from getting to the dashboard, and can last indefinitely. Version 0.6.2 has a patch for this issue. As a workaround, do not use HTTPS mode on the open internet where anyone can connect. Instead, put a reverse proxy in front of the dashboard, and have it handle any HTTPS connections.

Risk And Classification

Problem Types: CWE-667

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Dietpi-dashboard Project Dietpi-dashboard 0.6.1 All All All

References

ReferenceSourceLinkTags
Dashboard Old TLS - asciinema MISC asciinema.org
Insufficient TLS Handshake Pool leading to Denial of Service · Advisory · ravenclaw900/DietPi-Dashboard · GitHub MISC github.com
refactor(backend): replace TLS implementation with `flexible-hyper-server-tls` by ravenclaw900 · Pull Request #606 · ravenclaw900/DietPi-Dashboard · GitHub MISC github.com
fix(backend): replace TLS implementation with `flexible-hyper-server-… · ravenclaw900/DietPi-Dashboard@79cd786 · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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