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RUSTSEC-2023-0071: Marvin Attack: potential key recovery through timing sidechannels

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评估

难度
5/5
预计耗时
一周以上
新手友好度
20/100
Issue 类型
缺陷
描述清晰度
需要澄清
活跃度
停滞
技术栈
rust

调研方向

该 issue 指出了 0.9.6 版本的 rsa crate,并链接了 RUSTSEC-2023-0071 advisory,但没有指定任何 repository 文件或测试。首先定位依赖清单,并检查所述迁移工作是否已在其他地方完成。对于该依赖,只有在存在可用的完全常数时间实现或已达成一致的补救方案时,才能视为完成。

由索引模型根据 Issue 内容生成。

描述

Marvin Attack: potential key recovery through timing sidechannels

Details
Package rsa
Version 0.9.6
URL https://github.com/RustCrypto/RSA/issues/19#issuecomment-1822995643
Date 2023-11-22
Impact

Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key.

Patches

No patch is yet available, however work is underway to migrate to a fully constant-time implementation.

Workarounds

The only currently available workaround is to avoid using the rsa crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer is fine.

References

This vulnerability was discovered as part of the "Marvin Attack", which revealed several implementations of RSA including OpenSSL had not properly mitigated timing sidechannel attacks.

See advisory page for additional details.

主要语言
Rust
星标
167
派生
19
平均合并
1 天 6 小时
30 天内合并 PR
9

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