CVE-2024-42353

WebOb's location header normalization during redirect leads to open redirect

State
Published
Severity
6.1 Medium
Published
Aug 14, 2024
Updated
Aug 15, 2024
Reserved
Jul 30, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NGitHub_M

Weaknesses

  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

ProductVersions
webobPylons
  • <= 1.8.7Affected

References

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