CVE-2018-10299

An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin (BEC), the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two _receivers arguments in conjunction with a large _value argument, as exploited in the wild in April 2018, aka the "batchOverflow" issue.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://twitter.com/OKEx_/status/987967343983714304	Third Party Advisory
https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-Suspended	Third Party Advisory
https://peckshield.com/2018/04/22/batchOverflow/	Exploit Third Party Advisory
https://dasp.co/#item-3	Exploit Third Party Advisory
https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/	Issue Tracking Third Party Advisory
https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30e	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:beauty:beauty_ecosystem_coin:-:*:*:*:*:*:*:*

Information

Published : 2018-04-22 21:29

Updated : 2018-08-29 08:40

NVD link : CVE-2018-10299

Mitre link : CVE-2018-10299

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

beauty

beauty_ecosystem_coin

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