VDB-120439 · CVE-2016-10724 · GCVE-0-2016-10724

Bitcoin Core/Bitcoin Knots Private Key Size Message resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Bitcoin Core and Bitcoin Knots. Affected by this vulnerability is an unknown functionality of the component Private Key Size Handler. This manipulation as part of Message causes resource consumption. The identification of this vulnerability is CVE-2016-10724. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Bitcoin Core and Bitcoin Knots (the affected version is unknown). Affected by this vulnerability is an unknown code of the component Private Key Size Handler. The manipulation as part of a Message leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

Bitcoin Core before v0.13.0 allows denial of service (memory exhaustion) triggered by the remote network alert system (deprecated since Q1 2016) if an attacker can sign a message with a certain private key that had been known by unintended actors, because of an infinitely sized map. This affects other uses of the codebase, such as Bitcoin Knots before v0.13.0.knots20160814 and many altcoins.

The bug was discovered 07/02/2018. The weakness was shared 07/05/2018 (Website). It is possible to read the advisory at en.bitcoin.it. This vulnerability is known as CVE-2016-10724 since 06/24/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The entry VDB-120440 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/24/2018 🔍
07/02/2018 +8 days 🔍
07/05/2018 +2 days 🔍
07/05/2018 +0 days 🔍
07/06/2018 +1 days 🔍
02/25/2020 +599 days 🔍

Sourcesinfo

Advisory: en.bitcoin.it
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10724 (🔍)
GCVE (CVE): GCVE-0-2016-10724
GCVE (VulDB): GCVE-100-120439
See also: 🔍

Entryinfo

Created: 07/06/2018 08:55
Updated: 02/25/2020 22:59
Changes: 07/06/2018 08:55 (57), 02/25/2020 22:59 (2)
Complete: 🔍
Cache ID: 216::103