Vulnerability in Cryptosaga
CVE-2018-12975
The random() function of the smart contract implementation for CryptoSaga, an Ethereum game, generates a random value with publicly readable variables such as timestamp, the current block's blockhash, and a private variable (which can be read with a getStorageAt call). Therefore, attackers can precompute the random number and manipulate the game (e.g., get powerful characters or get critical damages).
EPSS: 0.013 (66.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Cryptosaga
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-12975?
- CVE-2018-12975 is a high-severity vulnerability in Cryptosaga, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 7.5/10. Published 2018-09-24.
- How severe is CVE-2018-12975?
- High severity. CVSS v3 base score is 7.5 out of 10.