CVE-2020-28168
Description
A flaw was found in nodejs-axios. The Axios NPM package contains a Server-Side Request Forgery (SSRF) vulnerability where an attacker is able to bypass a proxy by providing a URL that responds with a redirect to a restricted host or IP address.
Statement
Whilst in OpenShift Container Platform (OCP) the openshift4/ose-console container does include the vulnerable axios library, it does not use the vulnerable proxy functionality. Additionally, the console is behind OpenShift OAuth restricting access to authenticated users only and as such has been marked as Low impact.
The OpenShift Service Mesh (OSSM) kiali component also includes the vulnerable axios library. Similar to OCP, kiali does not make use of the proxy function and is behind OpenShift OAuth reducing the impact Low.
Mitigation
A mitigation exists where by catching the error code returned by axios.request, it can be identified that there is a redirect. By updating the old request config with the new redirect path, the request can then be repeated with the traffic routed through the proxy. As identified by Marika in this GitHub comment: https://github.com/axios/axios/issues/3369#issuecomment-721748989.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.9 | 5.9 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | High | High | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Integrity
Technical Impact: Execute Unauthorized Code or Commands
Access Control
Technical Impact: Bypass Protection Mechanism
By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.
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