Auth bypass in Evmos
CVE-2022-24738
Evmos is the Ethereum Virtual Machine (EVM) Hub on the Cosmos Network. In versions of evmos prior to 2.0.1 attackers are able to drain unclaimed funds from user addresses. To do this an attacker must create a new chain which does not enforce signature verification and connects it to the target evmos instance. The attacker can use this joined chain to transfer unclaimed funds. Users are advised to upgrade. There are no known workarounds for this issue.
Vulnerability class: Broken Authentication
EPSS: 0.011 (61.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Evmos
- Tharsis Evmos — versions < 2.0.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2022-24738?
- CVE-2022-24738 is a high-severity vulnerability in Evmos, classified under Improper Authentication. CVSS score: 8.1/10. Published 2022-03-07.
- How severe is CVE-2022-24738?
- High severity. CVSS v3 base score is 8.1 out of 10.