Tracto increaseApproval Smart Contract integer overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.5 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in Tracto. The impacted element is the function increaseApproval. Executing a manipulation as part of Smart Contract can lead to integer overflow.
This vulnerability is registered as CVE-2018-14063. It is possible to launch the attack remotely. No exploit is available.
Details
A vulnerability was found in Tracto (affected version not known). It has been declared as critical. This vulnerability affects the function increaseApproval. 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:
The increaseApproval function of a smart contract implementation for Tracto (TRCT), an Ethereum ERC20 token, has an integer overflow.
The bug was discovered 07/13/2018. The weakness was published 07/15/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-14063 since 07/15/2018. The exploitation appears to be easy. 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 vulnerability was handled as a non-public zero-day exploit for at least 2 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.
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Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Integer overflowCWE: 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: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
07/13/2018 🔍07/15/2018 🔍
07/15/2018 🔍
07/15/2018 🔍
07/16/2018 🔍
03/05/2020 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2018-14063 (🔍)
GCVE (CVE): GCVE-0-2018-14063
GCVE (VulDB): GCVE-100-121480
Entry
Created: 07/16/2018 08:59Updated: 03/05/2020 09:47
Changes: 07/16/2018 08:59 (55), 03/05/2020 09:47 (1)
Complete: 🔍
Cache ID: 216::103
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