BlockThreat - Week 23, 2023

Mt. Gox | Pink Drainer | Atlantis Loans | Silo | Satacom

Jun 20, 2023

∙ Paid

Dear Reader,

For more than 4 years, I have been dedicated to delivering top-quality content on the latest events and research in the field of blockchain security. As both the newsletter and the industry have grown, the demands and resources required to produce it on the weekly basis have increased as well.

The sections on Hacks and Vulnerabilities, in particular, require significant time and resources for curation and research. To ensure their continued high quality, I have made the decision to move them to the premium section of the newsletter and significantly expand their content. This change will provide auditors and bug bounty hunters with more detailed coverage to better understand novel exploitation vectors. Developers will also benefit from learning about attackers’ techniques and tactics to enhance their defenses.

You can see a free preview of what the above changes will look like below. To keep receiving news on hacks and vulnerabilities, please subscribe to the premium edition:

Please note that the rest of the newsletter, which includes threat intelligence on the latest events, research, competitions, tools, and other topics, will continue to be available to you free of charge with the same high quality of content that you have come to expect.

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Let’s dive into the news!

Contests

SEETF 2023 Writeups by minaminao and Kaiziron.

Media

The $200,000,000 Euler Hack by Junion.
Elliptic Curve Pairings | Demystifying Cryptography Fundamentals for Developers (Part 3 of 3) by koalateectrl.

Research

A Brief History of the Internet’s Biggest BGP Incidents by Doug Madory.
Web3 Wallet Security Audit Upgrade by SlowMist.
Unveiling Transaction Simulation Challenges: Blowfish Case Study by Tiago Assumpcao (Coinspect).
Software wallets research series: EIP-712 implementation issue impacting 40+ vendors by Matias Sequeira (Coinspect).
NFT attacks by Volodya provides a survey of common attack patterns.
Typical vulnerabilities in LSD protocols by kasimonagasaki (Decurity).
Smashing bugs using Certora Prover: A hands on approach to Formal Verification of Smart Contracts by Shanzson.
SmartBugs 2.0: An Execution Framework for Weakness Detection in Ethereum Smart Contracts.
An Empirical Study of Impact of Solidity Compiler Updates on Vulnerabilities in Ethereum Smart Contracts.
Vulnerable Smart Contract Function Locating Based on Multi-Relational Nested Graph Convolutional Network.
Read-only Reentrancy: In-Depth by OfficerCia.
Understanding Signature Replay Attack by Neptune Mutual.
What's inside a node? Malicious IPFS nodes under the magnifying glass.
Buying Time: Latency Racing vs. Bidding in Fair Transaction Ordering.
L2 MEV wat by Lisa A. maps out the current state of L2.
Diff EVM-compatible chains by Matt Solomon compares chain properties such as presence of precompiles and predeploys.
Gas Optimization in Ethereum Smart Contracts: 10 Best Practices by CertiK.
Greedy-Mine: A Profitable Mining Attack Strategy in Bitcoin-NG.
Demystifying ZKPs with Porter Adams.

Tools

Introducing flood: a load testing tool for benchmarking EVM nodes by Paradigm.
Introducing evm.storage — Increasing transparency and accessibility for EVM contracts by Dor (smlXL).
Fuzzy DeFi repo by 0xNazgul contains fuzz properties for the current top five forked protocols
Signature Malleability PoC by pcaversaccio.
Octane - A ether-rs middleware for reth that bypasses JSON-RPC allowing for faster db queries by Sorella Labs.
4byte Collider - A simple script to find function signatures that have colliding 4byte selectors by zobront.

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Premium Content

Hacks

UN Token Compromise

Date: June 6, 2023
Exploit Vector: Reward Manipulation
Impact: $26,000
Chain: BSC

Indicators:
BSC: 0xa247e81645d6b7fc800afecd836fef16f504d908
BSC: 0xf84efa8a9f7e68855cf17eaac9c2f97a9d131366

Exploit:
TX: 0xff5515…1c5b8b
PoC: UN_exp.sol

References:

Compounder Finance

Date: June 6, 2023
Exploit Vector: Price Oracle Manipulation
Impact: $30,000
Chain: Ethereum

Indicators:
Ethereum: 0x0e816b0d0a66252c72af822d3e0773a2676f3278 (ERC20Token Bank Attacker)

Exploit:
TX: 0xcff84c…6797b1

References:

https://twitter.com/HypernativeLabs/status/1666330194708144129

Murati AI

Date: June 6, 2023
Exploit Vector: Reentrancy
Impact: $88,000
Chain: BSC

Indicators:
BSC: 0x8887a9387ee149a81a17145065a7b13132f732cd

Exploit:
TX: 0x354da2…64cd2a

References:

Atlantis Loans

Date: June 10, 2023
Exploit Vector: Governance
Impact: $2,500,000
Chain: BSC

Indicators:
BSC: 0xeade071ff23bcef312dec938ece29f7da62cf45b

Exploit:
TX: 0x3b0df8…41d7e1

References:

Trust the Trident (SELLC)

Date: June 11, 2023
Exploit Vector: Price Oracle Manipulation
Impact: $100,000
Chain: BSC

Indicators:
BSC: 0x4beb05bf9bd4585ae2f4feb74112f18b423abb84
BSC: 0x0060129430df7ea188be3d8818404a2d40896089 (Galaxy NFT Attacker)

Exploit:
TX: 0xe968e6…23444b

References:

Other Incidents

Arbitrum

Date: June 7, 2023
Bug: Batch poster produced an invalid state
Impact: Chain Outage
Chain: Arbitrum

References:

Vulnerabilities

Silo Protocol fixed interest manipulation vulnerability for markets with $0 deposits. The vulnerability was responsibly disclosed by konkodu through Immunefi platform and the patch verified by Certora.
DFX Finance fixed a rounding error in the EURS token which used a non-standard decimal value.
Xverse wallet patched an issue in its browser extension where users’ secret recovery phrases were stored unencrypted on a local machine.

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