CVE-2020-35962 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Loopring	Loopring	-

References

https://blocksecteam.medium.com/loopring-lrc-protocol-incident-66e9470bd51fExploitThird Party Advisory
https://etherscan.io/address/0x4b89f8996892d137c3de1312d1dd4e4f4ffca171Third Party Advisory
https://blocksecteam.medium.com/loopring-lrc-protocol-incident-66e9470bd51fExploitThird Party Advisory
https://etherscan.io/address/0x4b89f8996892d137c3de1312d1dd4e4f4ffca171Third Party Advisory

FAQ

What is CVE-2020-35962?

CVE-2020-35962 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

How severe is CVE-2020-35962?

CVE-2020-35962 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-35962?

Check the references section above for vendor advisories and patch information. Affected products include: Loopring Loopring.