Ecosyste.ms: Advisories
An open API service providing security vulnerability metadata for many open source software ecosystems.
Security Advisories: GSA_kwCzR0hTQS1mODU0LWhweHYtY3c5cs0gtw
Drainage of FeeCollector's Block Transaction Fees in cronos
Impact
In Cronos nodes running versions before v0.6.5, it is possible to take transaction fees from Cosmos SDK's FeeCollector for the current block by sending a custom crafted MsgEthereumTx.
User funds and balances are safe.
Patches
This problem has been patched in Cronos v0.6.5 on the mempool level.
The next network upgrade with consensus-breaking changes will patch it on the consensus level.
Workarounds
There are no tested workarounds. All validator node operators are recommended to upgrade to Cronos v0.6.5 at their earliest possible convenience.
Credits
Thank you to @zb3 for reporting this issue on Cronos Immunefi Bug Bounty Program, to @cyril-crypto for reproducing the issue and to @yihuang and @thomas-nguy for patching the issue on the CheckTx (mempool) and the DeliverTx (consensus) levels.
For more information
If you have any questions or comments about this advisory:
- Open a discussion in crypto-org-chain/cronos
- Email us at [email protected]
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1mODU0LWhweHYtY3c5cs0gtw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 1 year ago
CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Identifiers: GHSA-f854-hpxv-cw9r, CVE-2021-43839
References:
- https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r
- https://nvd.nist.gov/vuln/detail/CVE-2021-43839
- https://github.com/crypto-org-chain/cronos/pull/270
- https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8
- https://github.com/advisories/GHSA-f854-hpxv-cw9r
Blast Radius: 12.5
Affected Packages
go:github.com/tharsis/ethermint
Dependent packages: 142Dependent repositories: 46
Downloads:
Affected Version Ranges: < 0.7.3, >= 0.8.0, < 0.10.0
Fixed in: 0.7.3, 0.10.0
All affected versions: 0.0.0, 0.1.0, 0.2.0, 0.2.1, 0.3.0, 0.3.1, 0.4.0, 0.4.1, 0.5.0, 0.6.0, 0.7.0, 0.7.1, 0.7.2, 0.8.0, 0.8.1, 0.9.0
All unaffected versions: 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.11.0, 0.11.1, 0.12.0, 0.12.1, 0.12.2, 0.13.0, 0.14.0, 0.14.1, 0.15.0, 0.15.1, 0.16.0, 0.16.1, 0.16.2, 0.17.0, 0.17.1, 0.17.2, 0.18.0, 0.19.0, 0.19.1, 0.19.2, 0.19.3, 0.20.0, 0.21.0, 0.22.0
go:github.com/tharsis/evmos
Dependent packages: 2Dependent repositories: 0
Downloads:
Affected Version Ranges: <= 0.4.2
No known fixed version
All affected versions: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.2.0, 0.3.0, 0.4.0, 0.4.1, 0.4.2
go:github.com/crypto-org-chain/cronos
Dependent packages: 7Dependent repositories: 3
Downloads:
Affected Version Ranges: < 0.6.5
Fixed in: 0.6.5
All affected versions: 0.5.1, 0.5.2, 0.6.1, 0.6.2, 0.6.3, 0.6.4
All unaffected versions: 0.6.5, 0.6.6, 0.6.7, 0.6.8, 0.6.9, 0.6.10, 0.6.11, 0.7.0, 0.7.1, 0.8.0, 0.8.1, 0.8.2, 0.8.3, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 1.0.11, 1.0.12, 1.0.13, 1.0.14, 1.0.15