Z-NOMP Equihash Header risky encryption

CVSS Meta Temp Score
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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.
7.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical was found in Z-NOMP. The affected element is an unknown function of the component Equihash. Such manipulation as part of Header leads to risky encryption. This vulnerability is referenced as CVE-2018-10831. It is possible to launch the attack remotely. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Z-NOMP (version unknown). It has been rated as critical. Affected by this issue is an unknown function of the component Equihash. The manipulation as part of a Header leads to a risky encryption vulnerability. Using CWE to declare the problem leads to CWE-327. The product uses a broken or risky cryptographic algorithm or protocol. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Z-NOMP before 2018-04-05 has an incorrect Equihash solution verifier that allows attackers to spoof mining shares, as demonstrated by providing a solution with {x1=1,x2=1,x3=1,...,x512=1} to bypass this verifier for any blockheader. This originally affected (for example) the Bitcoin Gold and Zcash cryptocurrencies, and continued to be exploited in the wild in May 2018 against smaller cryptocurrencies.

The bug was discovered 04/14/2018. The weakness was published 05/09/2018 (Website). The advisory is available at blog.zencash.com. This vulnerability is handled as CVE-2018-10831 since 05/09/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a private exploit is available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 02/03/2020). This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 25 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Risky encryption
CWE: CWE-327 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/14/2018 🔍
05/09/2018 +24 days 🔍
05/09/2018 +0 days 🔍
05/09/2018 +0 days 🔍
05/10/2018 +1 days 🔍
02/03/2020 +634 days 🔍

Sourcesinfo

Advisory: blog.zencash.com
Status: Not defined

CVE: CVE-2018-10831 (🔍)
GCVE (CVE): GCVE-0-2018-10831
GCVE (VulDB): GCVE-100-117530
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/10/2018 10:11
Updated: 02/03/2020 17:16
Changes: 05/10/2018 10:11 (58), 02/03/2020 17:16 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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