Pylon mintToken integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Pylon and classified as problematic. This issue affects the function mintToken. The manipulation leads to integer overflow. This vulnerability is referenced as CVE-2018-18667. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Pylon (the affected version unknown). This issue affects the function mintToken. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The mintToken function of Pylon (PYLNT) aka PylonToken, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value, a related issue to CVE-2018-11812.

The bug was discovered 11/30/2018. The weakness was published 12/28/2018 (Website). It is possible to read the advisory at etherscan.io. The identification of this vulnerability is CVE-2018-18667 since 10/26/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $0-$5k.

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

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: 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: 🔍

0-Day Time: 🔍

Timelineinfo

10/26/2018 🔍
11/30/2018 +35 days 🔍
12/28/2018 +28 days 🔍
12/28/2018 +0 days 🔍
12/29/2018 +1 days 🔍
04/24/2020 +482 days 🔍

Sourcesinfo

Advisory: etherscan.io
Status: Not defined

CVE: CVE-2018-18667 (🔍)
GCVE (CVE): GCVE-0-2018-18667
GCVE (VulDB): GCVE-100-128495

Entryinfo

Created: 12/29/2018 17:21
Updated: 04/24/2020 20:21
Changes: 12/29/2018 17:21 (55), 04/24/2020 20:21 (1)
Complete: 🔍
Cache ID: 216::103

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