The version of python-pip / python-urllib3 / python3 installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-45803 advisory.

  - 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 (like `POST`) to `GET` as is required by HTTP RFCs.
    Although this behavior is not specified in the section for redirects, it can be inferred by piecing     together information from different sections and we have observed the behavior in other major HTTP client     implementations like curl and web browsers. Because the vulnerability requires a previously trusted     service to become compromised in order to have an impact on confidentiality we believe the exploitability     of this vulnerability is low. Additionally, many users aren't putting sensitive data in HTTP request     bodies, if this is the case then this vulnerability isn't exploitable. Both of the following conditions     must be true to be affected by this vulnerability: 1. Using urllib3 and submitting sensitive information     in the HTTP request body (such as form data or JSON) and 2. The origin service is compromised and starts     redirecting using 301, 302, or 303 to a malicious peer or the redirected-to service becomes compromised.
    This issue has been addressed in versions 1.26.18 and 2.0.7 and users are advised to update to resolve     this issue. Users unable to update should disable redirects for services that aren't expecting to respond     with redirects with `redirects=False` and disable automatic redirects with `redirects=False` and handle     301, 302, and 303 redirects manually by stripping the HTTP request body. (CVE-2023-45803)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Detections

Analytics

Azure Linux 3.0 Security Update: python-pip / python-urllib3 / python3 (CVE-2023-45803)

medium Nessus Plugin ID 215636

Version 1.3