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CVE-2024-42353— WebOb's location header normalization during redirect leads to open redirect

Quick assessment

Affected
Pylons webob
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.

WebOb是Pylons开源的一个 WSGI 请求和响应对象。 WebOb 1.8.8之前版本存在安全漏洞，该漏洞源于存在打开重定向。

CVSS 6.1 · Medium EPSS 0.53% · P42

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2024-42353

Vulnerability Information
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Vulnerability Title
WebOb's location header normalization during redirect leads to open redirect
Source: CVE Program / CVE List V5
Vulnerability Description
WebOb provides objects for HTTP requests and responses. When WebOb normalizes the HTTP Location header to include the request hostname, it does so by parsing the URL that the user is to be redirected to with Python's urlparse, and joining it to the base URL. `urlparse` however treats a `//` at the start of a string as a URI without a scheme, and then treats the next part as the hostname. `urljoin` will then use that hostname from the second part as the hostname replacing the original one from the request. This vulnerability is patched in WebOb version 1.8.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
WebOb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WebOb是Pylons开源的一个 WSGI 请求和响应对象。 WebOb 1.8.8之前版本存在安全漏洞，该漏洞源于存在打开重定向。
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
Pylons webob <= 1.8.7 -

II. Public POCs for CVE-2024-42353

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III. Intelligence Information for CVE-2024-42353

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Patches & Fixes for CVE-2024-42353 (1)

Vendor Advisories for CVE-2024-42353 (1)

IV. Related Vulnerabilities

Same product: webob
Same vendor: Pylons
Same weakness: CWE-601

V. Comments for CVE-2024-42353

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