Bitcoin Core/Knots Datacarrier Size Limit access control

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Bitcoin Core and Knots. It has been rated as critical. This affects an unknown part of the component Datacarrier Size Limit Handler. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2023-50428. Furthermore, there is an exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Bitcoin Core and Knots (version unknown). This affects an unknown function of the component Datacarrier Size Limit Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on integrity. The summary by CVE is:

In Bitcoin Core through 26.0 and Bitcoin Knots before 25.1.knots20231115, datacarrier size limits can be bypassed by obfuscating data as code (e.g., with OP_FALSE OP_IF), as exploited in the wild by Inscriptions in 2022 and 2023.

The weakness was shared 12/09/2023. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-50428 since 12/09/2023. Technical details are unknown but an exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

It is declared as highly functional.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: github.com
Patch: github.com

Timelineinfo

12/09/2023 🔍
12/09/2023 +0 days 🔍
12/09/2023 +0 days 🔍
04/24/2025 +502 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2023-50428 (🔍)
GCVE (CVE): GCVE-0-2023-50428
GCVE (VulDB): GCVE-100-247359
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/09/2023 23:49
Updated: 04/24/2025 06:43
Changes: 12/09/2023 23:49 (41), 01/01/2024 09:47 (11), 08/03/2024 02:26 (15), 04/24/2025 06:43 (3)
Complete: 🔍
Cache ID: 216::103

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