CVE-2024-36539

Published Jul 24, 2024

Last updated 10 months ago

CVSS critical 9.8

Overview

Description
Insecure permissions in contour v1.28.3 allows attackers to access sensitive data and escalate privileges by obtaining the service account's token.
Source
cve@mitre.org
NVD status
Analyzed
Products
contour

Risk scores

CVSS 3.1

Type
Secondary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-277

Social media

Hype score
Not currently trending

  1. šŸšØ Critical Vulnerability in Contour v1.28.3 ā€“ CVE-2024-36539. Update to version 1.28.4 immediately to protect your Kubernetes environment and ensure data security. šŸ”§ Read more: https://t.co/iKGnBlU3DG #Contour #CVE202436539 #Kubernetes #CyberSecurity #Vulert #PatchNow

    @vulert_official

    30 Jun 2025

    17 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

Configurations

Related CVEs

  1. Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in spec.routes[].cookieRewritePolicies[].pathRewrite.value or spec.routes[].services[].cookieRewritePolicies[].pathRewrite.value that results in arbitrary code execution in the Envoy proxy. The cookie rewriting feature is internally implemented using Envoy's HTTP Lua filter. User-controlled values are interpolated into Lua source code using Go text/template without sufficient sanitization. The injected code only executes when processing traffic on the attacker's own route, which they already control. However, since Envoy runs as shared infrastructure, the injected code can also read Envoy's xDS client credentials from the filesystem or cause denial of service for other tenants sharing the Envoy instance. This vulnerability is fixed in v1.33.4, v1.32.5, and v1.31.6.ā€¢CVE-2026-41246
  2. HTTP/2 Rapid Reset Attack Vulnerabilityā€¢CVE-2023-44487

References

Sources include official advisories and independent security research.