CVE & CISA-KEV Catalog

CVE-2023-38505

HIGH
7.5
CVSS v3
NVD

Description

DietPi-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.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.80%probability of exploitation in 30 days
54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-410 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-40224High7.565%--
CVE-2025-0453High7.511%--
CVE-2022-2048High7.52.3%-Fix
CVE-2025-27479High7.52.0%-Fix
CVE-2018-13815High7.51.8%-Fix
CVE-2019-13921High7.51.4%--

Common questions

How do I fix CVE-2023-38505?

No published fix for CVE-2023-38505 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Is CVE-2023-38505 being actively exploited?

Not that we know of. CVE-2023-38505 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.80% is the estimated probability that it will be exploited in the next 30 days. That is higher than 54% of all scored CVEs.

How severe is CVE-2023-38505?

CVE-2023-38505 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.