Vulnerability CVE-2020-35962
Published: 2021-01-03

Description:
The sellTokenForLRC function in the vault protocol in the smart contract implementation for Loopring (LRC), an Ethereum token, lacks access control for fee swapping and thus allows price manipulation.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Loopring -> Loopring 

 References:
https://blocksecteam.medium.com/loopring-lrc-protocol-incident-66e9470bd51f
https://etherscan.io/address/0x4b89f8996892d137c3de1312d1dd4e4f4ffca171
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