CVE-2022-31142— Potential Timing Attack Vector in @fastify/bearer-auth
Quick assessment
Affected
fastify fastify-bearer-auth
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.
Fastify是Openjs基金会的一款用于Node.js的开源Web框架。 Fastify plugin @fastify/bearer-auth 7.0.2之前版本和8.0.1之前版本存在安全漏洞，该漏洞源于不安全地使用 crypto.timingSafeEqual。
Possible ATT&CK Techniques 1 AI
T1110.004 · Credential Stuffing
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I. Basic Information for CVE-2022-31142
Vulnerability Information
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Vulnerability Title
Potential Timing Attack Vector in @fastify/bearer-auth
Source: CVE Program / CVE List V5
Vulnerability Description
@fastify/bearer-auth is a Fastify plugin to require bearer Authorization headers. @fastify/bearer-auth prior to versions 7.0.2 and 8.0.1 does not securely use crypto.timingSafeEqual. A malicious attacker could estimate the length of one valid bearer token. According to the corresponding RFC 6750, the bearer token has only base64 valid characters, reducing the range of characters for a brute force attack. Version 7.0.2 and 8.0.1 of @fastify/bearer-auth contain a patch. There are currently no known workarounds. The package fastify-bearer-auth, which covers versions 6.0.3 and prior, is also vulnerable starting at version 5.0.1. Users of fastify-bearer-auth should upgrade to a patched version of @fastify/bearer-auth.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Fastify 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fastify是Openjs基金会的一款用于Node.js的开源Web框架。 Fastify plugin @fastify/bearer-auth 7.0.2之前版本和8.0.1之前版本存在安全漏洞，该漏洞源于不安全地使用 crypto.timingSafeEqual。
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 |
|---|---|---|---|---|
| fastify | fastify-bearer-auth | >= 5.0.1, < 7.0.2 | - |
|
II. Public POCs for CVE-2022-31142
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-31142 (3)
Vendor Advisories for CVE-2022-31142 (1)
Other References for CVE-2022-31142 (1)
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https://hackerone.com/reports/1633287 x_refsource_MISC
IV. Related Vulnerabilities
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V. Comments for CVE-2022-31142
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