CVE Vulnerability

CVE-2022-21221

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/valyala/fasthttp/commit/15262ecf3c602364639d465daba1e7f3604d00e8 Patch Third Party Advisory
https://github.com/valyala/fasthttp/issues/1226 Exploit Issue Tracking
https://github.com/valyala/fasthttp/commit/6b5bc7bb304975147b4af68df54ac214ed2554c1 Patch Third Party Advisory
https://github.com/valyala/fasthttp/releases/tag/v1.34.0 Release Notes Third Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMVALYALAFASTHTTP-2407866 Exploit Patch
Configurations

Configuration 1
Information

Published : 2022-03-17 12:15

Updated : 2022-03-24 02:27

NVD link : CVE-2022-21221

Mitre link : CVE-2022-21221

Products Affected
No products.
CWE
CWE-22