KoreaShow Ethereum ERC20 Token transferMulti Smart Contract integer overflow

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

Summaryinfo

A vulnerability, which was classified as critical, was found in KoreaShow. This issue affects the function transferMulti of the component Ethereum ERC20 Token Handler. Executing a manipulation as part of Smart Contract can lead to integer overflow. This vulnerability is handled as CVE-2018-10973. The attack can be executed remotely. There is not any exploit available. This vulnerability has a historic impact due to its background and reception.

Detailsinfo

A vulnerability has been found in KoreaShow (affected version not known) and classified as critical. This vulnerability affects the function transferMulti of the component Ethereum ERC20 Token Handler. The manipulation as part of a Smart Contract leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An integer overflow in the transferMulti function of a smart contract implementation for KoreaShow, an Ethereum ERC20 token, allows attackers to accomplish an unauthorized increase of digital assets via crafted _value parameters.

The bug was discovered 05/10/2018. The weakness was released 05/10/2018 (Website). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2018-10973 since 05/10/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 02/04/2020). This vulnerability has a historic impact due to its background and reception.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: 🔍

Timelineinfo

05/10/2018 🔍
05/10/2018 +0 days 🔍
05/10/2018 +0 days 🔍
05/10/2018 +0 days 🔍
05/11/2018 +1 days 🔍
02/04/2020 +634 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined

CVE: CVE-2018-10973 (🔍)
GCVE (CVE): GCVE-0-2018-10973
GCVE (VulDB): GCVE-100-117616

Entryinfo

Created: 05/11/2018 11:07
Updated: 02/04/2020 14:00
Changes: 05/11/2018 11:07 (57), 02/04/2020 14:00 (1)
Complete: 🔍
Cache ID: 216::103

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