PT-2020-8511 · Kubernetes · Kubernetes Ingress Default Backend

Nicoleg25 · Published 2020-01-14 · Updated 2022-05-24 · CVE-2018-1002104

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Kubernetes ingress default backend versions prior to 1.5

Description: The issue concerns the exposure of Prometheus metrics publicly due to the Kubernetes ingress default backend handling invalid ingress traffic improperly.

Recommendations: For versions prior to 1.5, update to version 1.5 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-215

CWE-20

Related Identifiers

CVE-2018-1002104

GHSA-P3X5-5XPX-9PHM

Affected Products

Kubernetes Ingress Default Backend

References · 7

• https://github.com/kubernetes/ingress-nginx/pull/3125 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-1002104 · Security Note
• https://osv.dev/vulnerability/GHSA-p3x5-5xpx-9phm · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-1002104 · Vendor Advisory
• https://github.com/kubernetes/ingress-nginx · Note
• https://github.com/kubernetes/ingress-nginx/issues/1733 · Note
• https://github.com/kubernetes/ingress-nginx/commit/d487a50e399100ad8db12ed1d2f92271f311f676 · Note