Vulnerability Details : 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.
Vulnerability category: Overflow
Products affected by CVE-2018-10299
- cpe:2.3:a:beauty:beauty_ecosystem_coin:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-10299
0.74%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-10299
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-10299
-
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 occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-10299
-
https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/
OKEx ERC20 Bug : ethereumIssue Tracking;Third Party Advisory
-
https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30e
A disastrous vulnerability found in smart contracts of BeautyChain (BEC)Exploit;Third Party Advisory
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https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-Suspended
BeautyChain (BEC) Withdrawal and Trading Suspended[Update] – Help centerThird Party Advisory
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https://peckshield.com/2018/04/22/batchOverflow/
PeckShield Inc. - ALERT: New batchOverflow Bug in Multiple ERC20 Smart Contracts (CVE-2018-10299)Exploit;Third Party Advisory
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https://twitter.com/OKEx_/status/987967343983714304
OKEx on Twitter: "BeautyChain ($BEC) Withdrawal and Trading Suspended https://t.co/pgiZ17Yjf7… "Third Party Advisory
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https://dasp.co/#item-3
DASP - TOP 10Exploit;Third Party Advisory
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