CVE-2021-41138
"Frontier Ethereum Compatibility Layer Invalid Transaction Injection and Replay Attacks"
Description
Frontier is Substrate's Ethereum compatibility layer. In the newly introduced signed Frontier-specific extrinsic for `pallet-ethereum`, a large part of transaction validation logic was only called in transaction pool validation, but not in block execution. Malicious validators can take advantage of this to put invalid transactions into a block. The attack is limited in that the signature is always validated, and the majority of the validation is done again in the subsequent `pallet-evm` execution logic. However, do note that a chain ID replay attack was possible. In addition, spamming attacks are of main concerns, while they are limited by Substrate block size limits and other factors. The issue is patched in commit `146bb48849e5393004be5c88beefe76fdf009aba`.
INFO
Published Date :
Oct. 13, 2021, 4:15 p.m.
Last Modified :
Oct. 20, 2021, 4:45 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-41138
.
URL | Resource |
---|---|
https://github.com/paritytech/frontier/commit/146bb48849e5393004be5c88beefe76fdf009aba | Patch Third Party Advisory |
https://github.com/paritytech/frontier/pull/497 | Patch Third Party Advisory |
https://github.com/paritytech/frontier/security/advisories/GHSA-vj62-g63v-f8mf | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-41138
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41138
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 20, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Changed Reference Type https://github.com/paritytech/frontier/commit/146bb48849e5393004be5c88beefe76fdf009aba No Types Assigned https://github.com/paritytech/frontier/commit/146bb48849e5393004be5c88beefe76fdf009aba Patch, Third Party Advisory Changed Reference Type https://github.com/paritytech/frontier/pull/497 No Types Assigned https://github.com/paritytech/frontier/pull/497 Patch, Third Party Advisory Changed Reference Type https://github.com/paritytech/frontier/security/advisories/GHSA-vj62-g63v-f8mf No Types Assigned https://github.com/paritytech/frontier/security/advisories/GHSA-vj62-g63v-f8mf Patch, Third Party Advisory Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:a:parity:frontier:*:*:*:*:*:*:*:* versions from (including) 2021-09-30 up to (excluding) 2021-10-13
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41138
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-41138
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.01%
score
0.51892
percentile