CVE-2018-12885 Other in n/a
Attackers can predict random values in the MyCryptoChamp smart contract to obtain powerful items and rewards, undermining game integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-12885?
CVE-2018-12885 is a medium-severity vulnerability in n/a, published on 7 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.
Weakness: CWE-338
Which versions are affected by CVE-2018-12885?
It affects 1 product.
Products include Mycryptochamp Mycryptochamp.
How do I fix CVE-2018-12885?
No fix has been published for CVE-2018-12885 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-12885 being exploited?
There is no known exploitation of CVE-2018-12885 in the wild and no public exploit code.
Sources
Also known as GHSA-h4gq-q399-xm7r.