CVE-2022-21221— Directory Traversal
Quick assessment
Affected
n/a github.com/valyala/fasthttp
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.
fasthttp是Go 的快速 HTTP 实现。 fasthttp 1.34.0之前版本存在安全漏洞，该漏洞源于ServerFile函数缺少有效的过滤转义，导致目录遍历。攻击者可以发送“/%5c”字符利用该漏洞实现目录遍历。
Possible ATT&CK Techniques 1 AI
T1083 · File and Directory Discovery
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I. Basic Information for CVE-2022-21221
Vulnerability Information
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Vulnerability Title
Directory Traversal
Source: CVE Program / CVE List V5
Vulnerability Description
The package github.com/valyala/fasthttp before 1.34.0 are vulnerable to Directory Traversal via the ServeFile function, due to improper sanitization. It is possible to be exploited by using a backslash %5c character in the path. **Note:** This security issue impacts Windows users only.
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
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
fasthttp 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
fasthttp是Go 的快速 HTTP 实现。 fasthttp 1.34.0之前版本存在安全漏洞，该漏洞源于ServerFile函数缺少有效的过滤转义，导致目录遍历。攻击者可以发送“/%5c”字符利用该漏洞实现目录遍历。
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 |
|---|---|---|---|---|
| - | github.com/valyala/fasthttp | unspecified ~ 1.34.0 | - |
|
II. Public POCs for CVE-2022-21221
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2022-21221 (2)
Other References for CVE-2022-21221 (2)
-
https://github.com/valyala/fasthttp/issues/1226 x_refsource_MISC
-
https://github.com/valyala/fasthttp/releases/tag/v1.34.0 x_refsource_MISC
Same Patch Batch · n/a · 2022-03-17 · 36 CVEs total
| CVE-2022-0748 | 9.8 CRITICAL | Arbitrary Code Execution |
| CVE-2022-25354 | 8.6 HIGH | Prototype Pollution |
| CVE-2022-25352 | 7.5 HIGH | Prototype Pollution |
| CVE-2022-0749 | 7.4 HIGH | Deserialization of Untrusted Data |
| CVE-2022-25760 | 7.1 HIGH | Arbitrary Code Injection |
| CVE-2021-23632 | 6.6 MEDIUM | Remote Code Execution (RCE) |
| CVE-2021-23771 | 6.5 MEDIUM | Sandbox Bypass |
| CVE-2021-23556 | 6.4 MEDIUM | Exposed Dangerous Method or Function |
| CVE-2022-25296 | 6.3 MEDIUM | Prototype Pollution |
| CVE-2020-15591 | F*EX 代码注入漏洞 | |
| CVE-2021-44260 | WAVLINK AC1200 访问控制错误漏洞 | |
| CVE-2022-26503 | Veeam Agent for Windows 代码问题漏洞 | |
| CVE-2022-25364 | Gradle 安全漏洞 | |
| CVE-2021-45040 | Spatie Laravel Media Library Pro 代码问题漏洞 | |
| CVE-2022-26501 | Veeam Backup&Replication 访问控制错误漏洞 | |
| CVE-2021-46107 | Ligeo Archives 代码问题漏洞 | |
| CVE-2022-26504 | Veeam Backup&Replication 授权问题漏洞 | |
| CVE-2022-26500 | Veeam Backup&Replication 路径遍历漏洞 | |
| CVE-2022-24302 | Paramiko 竞争条件问题漏洞 | |
| CVE-2021-44088 | Attendance and Payroll System SQL注入漏洞 |
Showing top 20 of 36 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2022-21221
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