Summary
It was discovered that urllib3 didn't strip HTTP Authorization header
on cross-origin redirects. A remote attacker could possibly use this
issue to obtain sensitive information. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-25091)
It was discovered that urllib3 didn't strip HTTP Cookie header on
cross-origin redirects. A remote attacker could possibly use this
issue to obtain sensitive information. (CVE-2023-43804)
It was discovered that urllib3 didn't strip HTTP body on status code
303 redirects under certain circumstances. A remote attacker could
possibly use this issue to obtain sensitive information. (CVE-2023-45803)
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | python-urllib3 | 1.25.8-2ubuntu0.3 |
| Ubuntu · 22.04 LTS 22.04:LTS | python-urllib3 | 1.26.5-1~exp1ubuntu0.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | python-urllib3 | 1.13.1-2ubuntu0.16.04.4+esm1 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | python-urllib3 | 1.22-1ubuntu0.18.04.2+esm1 |
Vulnerabilities 3
-
Medium 6.1
Authorization Header forwarded on redirect
urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts o…
-
Medium 5.9CVE-2023-43804 Public exploit
`Cookie` HTTP header isn't stripped on cross-origin redirects
urllib3 is a user-friendly HTTP client library for Python. urllib3 doesn't treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `C…
-
Medium 4.2
Request body not stripped after redirect in urllib3
urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one that could accept a request body…