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MitreCVE-2018-14085

HistoryJul 16, 2018 - 2:29 a.m.

CVE-2018-14085

2018-07-1602:29:00

CWE-20

mitre

web.nvd.nist.gov

information security

ethereum

smart contract

vulnerability

nvd

cve-2018-14085

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

44.8%

JSON

An issue was discovered in a smart contract implementation for UserWallet 0x0a7bca9FB7AfF26c6ED8029BB6f0F5D291587c42, an Ethereum token. First, suppose that the owner adds the evil contract address to his sweepers. The evil contract looks like this: contract Exploit { uint public start; function sweep(address _token, uint _amount) returns (bool) { start = 0x123456789; return true;} }. Then, when one calls the function sweep() in the UserWallet contract, it will change the sweeperList to 0X123456789.

Affected configurations

Nvd

Node

userwallet_projectuserwalletMatch-

VendorProductVersionCPE
userwallet_projectuserwallet-cpe:2.3:a:userwallet_project:userwallet:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
userwallet_project	userwallet	-	cpe:2.3:a:userwallet_project:userwallet:-:::::::*

References

github.com/hellowuzekai/blockchains/blob/master/delegatecall.md

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

44.8%

JSON

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