CVE-2024-42353

2024-08-1600:12:40

redhat.com

access.redhat.com

webob

http location

normalization

vulnerability

patched

version 1.8.8

url

parsing

hostname

urlparse

urljoin

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AI Score

5.9

Confidence

High

EPSS

0.001

Percentile

17.7%

JSON

A vulnerability was found in the WebOb package. WebOb normalizes the HTTP Location header using urlparse and urljoin. If the URL starts with //, urlparse treats the following part as the hostname, and replaces the original request’s hostname. This issue, combined with user interaction, may become a vulnerability.

Mitigation

If the Response class is used, any HTTP Location header (i.e. location) can be rewritten so that it always passes a full URI that includes the hostname to redirect the user to.