Offchain Labs 发现 Optimism 欺诈预防系统的严重缺陷

Offchain Labs 发现了部署在测试网上的 Optimism OP Stack 防欺诈系统中的安全漏洞，该漏洞允许恶意行为者改变链的历史记录。这些发现促使 Optimism 更新其测试网，以解决缺陷并加强安全性，突出了以太坊区块链领域防御机制的协作性质。

Offchain Labs Discovers Critical Vulnerabilities in Optimism's Fraud-Proof System

Offchain Labs 发现 Optimism 防欺诈系统中的严重漏洞

March 22, 2023

2023 年 3 月 22 日

In a significant development, Offchain Labs, a leading blockchain research firm, has disclosed the discovery of critical security vulnerabilities within the fraud-proof system deployed on Optimism's OP Stack testnet. The vulnerabilities, acknowledged by OP Labs on March 25, raised concerns about the potential for malicious actors to manipulate the chain's history.

领先的区块链研究公司 Offchain Labs 披露了在 Optimism OP Stack 测试网上部署的防欺诈系统中发现的关键安全漏洞，这是一项重大进展。 OP Labs 于 3 月 25 日承认了这些漏洞，引发了人们对恶意行为者可能操纵该链历史的担忧。

Vulnerabilities Expose Chain Integrity Weakness

漏洞暴露了链完整性的弱点

Offchain Labs' analysis revealed that the initial protocol setup was vulnerable to "traitor attacks," where dishonest participants could unfairly influence dispute outcomes. Furthermore, the vulnerabilities exposed a fundamental weakness in the system's ability to distinguish between genuine and fraudulent chain history, underscoring the vital importance of robust security measures in maintaining the integrity of such systems.

Offchain Labs 的分析显示，最初的协议设置很容易受到“叛徒攻击”，不诚实的参与者可能会不公平地影响争议结果。此外，这些漏洞暴露了系统区分真实和欺诈链历史的能力的根本弱点，强调了强大的安全措施在维护此类系统完整性方面的至关重要性。

Optimism Swiftly Implements Countermeasures

乐观情绪迅速实施对策

Recognizing the severity of the vulnerabilities, Optimism promptly updated its testnet on April 25 to address the security shortcomings and enhance protection. By fast-tracking the implementation of a time-manager code with fraud-proof capabilities, Optimism effectively eliminated the detected weaknesses.

认识到漏洞的严重性后，Optimism 于 4 月 25 日及时更新了测试网，以解决安全缺陷并加强保护。通过快速跟踪具有防欺诈功能的时间管理器代码的实施，Optimism 有效地消除了检测到的弱点。

Collaboration Strengthens Ecosystem Security

协作加强生态系统安全

The collaborative efforts between Offchain Labs and Optimism exemplify the value of teamwork in safeguarding the Ethereum blockchain ecosystem. Offchain Labs' proactive approach, evidenced by the release of a proof-of-concept exploit code, supports the collective security initiatives across various platforms and highlights the complexities of fraud-proof protocol design.

Offchain Labs 和 Optimism 之间的合作体现了团队合作在保护以太坊区块链生态系统方面的价值。 Offchain Labs 的主动方法（通过发布概念验证漏洞代码证明）支持跨不同平台的集体安全举措，并强调了防欺诈协议设计的复杂性。

Offchain Labs' Contribution to Layer 2 Security

Offchain Labs 对 Layer 2 安全性的贡献

Offchain Labs' contribution extends beyond addressing the vulnerabilities in Optimism. Their findings provide valuable insights into potential security challenges facing other Layer 2 solutions, emphasizing the interconnected nature of blockchain security. The incident emphasizes the critical role of peer review and collaborative security checks within the blockchain industry.

Offchain Labs 的贡献不仅仅限于解决乐观主义的漏洞。他们的研究结果为其他第 2 层解决方案面临的潜在安全挑战提供了宝贵的见解，强调了区块链安全的互连性质。该事件强调了区块链行业内同行评审和协作安全检查的关键作用。

External Audits Enhance Testnet Security

外部审计增强测试网安全性

Offchain Labs and Optimism strongly advocate for the significance of external audits in identifying and resolving security vulnerabilities before a system's deployment. By conducting thorough audits on testnet prototypes, early detection and remediation of security issues can be achieved, preventing potential catastrophes during live operation.

Offchain Labs 和 Optimism 强烈主张外部审计在系统部署之前识别和解决安全漏洞的重要性。通过对测试网原型进行彻底审核，可以实现安全问题的早期检测和修复，防止实时运行期间潜在的灾难。

Conclusion

结论

The discovery of these vulnerabilities serves as a stark reminder of the ever-evolving nature of blockchain security. The collaborative efforts between Offchain Labs and Optimism underscore the importance of community collaboration in strengthening the security of Layer 2 solutions and the broader Ethereum ecosystem. As blockchain adoption continues to advance, maintaining robust security measures will remain paramount, ensuring the integrity and trust in these groundbreaking technologies.

这些漏洞的发现清楚地提醒我们区块链安全性不断发展的本质。 Offchain Labs 和 Optimism 之间的合作强调了社区协作在加强 Layer 2 解决方案和更广泛的以太坊生态系统安全性方面的重要性。随着区块链采用的不断推进，维持强大的安全措施仍然至关重要，以确保这些突破性技术的完整性和信任。