Vulnerability Details : CVE-2021-25834
Cosmos Network Ethermint <= v0.4.0 is affected by a transaction replay vulnerability in the EVM module. If the victim sends a very large nonce transaction, the attacker can replay the transaction through the application.
Exploit prediction scoring system (EPSS) score for CVE-2021-25834
Probability of exploitation activity in the next 30 days: 0.08%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 35 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-25834
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.1/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-2021-25834
-
A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-25834
-
https://github.com/cosmos/ethermint/issues/686
Weak noncecheck lead to replay of transactions · Issue #686 · cosmos/ethermint · GitHubThird Party Advisory
Products affected by CVE-2021-25834
- cpe:2.3:a:chainsafe:ethermint:*:*:*:*:*:*:*:*