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CVE-2023-49092— RustCrypto/RSA vulnerable to a Marvin Attack via key recovery through timing sidechannels

Quick assessment

Affected
RustCrypto RSA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rust是美国Mozilla基金会的一款通用、编译型编程语言。 Rust RustCrypto RSA存在安全漏洞，该漏洞源于有关私钥的信息可通过网络观察到的计时信息泄露。

CVSS 5.9 · Medium EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories
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I. Basic Information for CVE-2023-49092

Vulnerability Information
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Vulnerability Title
RustCrypto/RSA vulnerable to a Marvin Attack via key recovery through timing sidechannels
Source: CVE Program / CVE List V5
Vulnerability Description
RustCrypto/RSA is a portable RSA implementation in pure Rust. 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. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
隐蔽时间通道
Source: CVE Program / CVE List V5
Vulnerability Title
Rust 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rust是美国Mozilla基金会的一款通用、编译型编程语言。 Rust RustCrypto RSA存在安全漏洞，该漏洞源于有关私钥的信息可通过网络观察到的计时信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
RustCrypto RSA <= 0.9.5 -

II. Public POCs for CVE-2023-49092

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III. Intelligence Information for CVE-2023-49092

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Vendor Advisories for CVE-2023-49092 (1)

Other References for CVE-2023-49092 (1)

IV. Related Vulnerabilities

Same product: RSA
Same vendor: RustCrypto
Same weakness: CWE-385

V. Comments for CVE-2023-49092

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