CVE-2020-15111

In Fiber before version 1.12.6, the filename that is given in c.Attachment() (https://docs.gofiber.io/ctx#attachment) is not escaped, and therefore vulnerable for a CRLF injection attack. I.e. an attacker could upload a custom filename and then give the link to the victim. With this filename, the attacker can change the name of the downloaded file, redirect to another site, change the authorization header, etc. A possible workaround is to serialize the input before passing it to ctx.Attachment().

CVSS v3 5.4 MEDIUM
CVSS v2.0 5.8 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:N

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/gofiber/fiber/pull/579/commits/f698b5d5066cfe594102ae252cd58a1fe57cf56f	Patch Third Party Advisory
https://github.com/gofiber/fiber/security/advisories/GHSA-9cx9-x2gp-9qvh	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gofiber:fiber:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-07-20 18:15

Updated : 2023-12-10 13:27

NVD link : CVE-2020-15111

Mitre link : CVE-2020-15111

CVE.ORG link : CVE-2020-15111

JSON object : View

Products Affected

gofiber

fiber

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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