7.5
HIGH
CVE-2019-11253
Kubernetes API Server YAML/JSON Payload Input Validation Denial of Service Vulnerability
Description

Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memory, potentially crashing and becoming unavailable. Prior to v1.14.0, default RBAC policy authorized anonymous users to submit requests that could trigger this vulnerability. Clusters upgraded from a version prior to v1.14.0 keep the more permissive policy by default for backwards compatibility.

INFO

Published Date :

Oct. 17, 2019, 4:15 p.m.

Last Modified :

Nov. 7, 2023, 3:02 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2019-11253 has a 7 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2019-11253 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat openshift_container_platform
1 Kubernetes kubernetes
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-11253.

URL Resource
https://access.redhat.com/errata/RHSA-2019:3239 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3811 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3905 Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/83253 Exploit Issue Tracking Mitigation Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/jk8polzSUxs
https://security.netapp.com/advisory/ntap-20191031-0006/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

⚙ DevSecOps Kubernetes Playground ("A Hacker's Guide to Kubernetes")

Dockerfile Shell Ruby Smarty Jinja HCL

Updated: 3 months ago
14 stars 2 fork 2 watcher
Born at : July 1, 2022, 7:12 a.m. This repo has been linked 57 different CVEs too.

None

Dockerfile

Updated: 2 years, 6 months ago
0 stars 0 fork 0 watcher
Born at : April 27, 2022, 3:28 a.m. This repo has been linked 19 different CVEs too.

《云原生安全:攻防实践与体系构建》资料仓库

Dockerfile C Shell Makefile Assembly Go Python

Updated: 2 months, 2 weeks ago
718 stars 123 fork 123 watcher
Born at : Sept. 25, 2021, 1:56 p.m. This repo has been linked 12 different CVEs too.

None

Updated: 2 months, 3 weeks ago
42 stars 8 fork 8 watcher
Born at : Sept. 1, 2021, 2:31 p.m. This repo has been linked 8 different CVEs too.

Metarget is a framework providing automatic constructions of vulnerable infrastructures.

cloud-native kubernetes container cloud-native-security kubernetes-security container-security container-escape target vulnerable-infrastructure vulnerabilities vulnerable-scenes vulnerable-infrastructures privilege-escalation kernel-exploitation

Python Shell HTML JavaScript PHP Perl Dockerfile C

Updated: 2 months, 2 weeks ago
1053 stars 163 fork 163 watcher
Born at : April 9, 2021, 4:20 a.m. This repo has been linked 47 different CVEs too.

2019年天融信阿尔法实验室在微信公众号发布的所有安全资讯汇总

Updated: 2 months, 3 weeks ago
33 stars 5 fork 5 watcher
Born at : Jan. 11, 2021, 2:13 a.m. This repo has been linked 240 different CVEs too.

This repository contain any information that can be used to hack Kubernetes

Updated: 2 months, 3 weeks ago
98 stars 16 fork 16 watcher
Born at : March 8, 2020, 4:55 p.m. This repo has been linked 8 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-11253 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-11253 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Kubernetes https://groups.google.com/forum/#%21topic/kubernetes-security-announce/jk8polzSUxs [No types assigned]
    Removed Reference Kubernetes https://groups.google.com/forum/#!topic/kubernetes-security-announce/jk8polzSUxs
  • Modified Analysis by [email protected]

    Oct. 02, 2020

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:3239 No Types Assigned https://access.redhat.com/errata/RHSA-2019:3239 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:3811 No Types Assigned https://access.redhat.com/errata/RHSA-2019:3811 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:3905 No Types Assigned https://access.redhat.com/errata/RHSA-2019:3905 Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20191031-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20191031-0006/ Third Party Advisory
    Removed CWE NIST CWE-20
    Added CWE NIST CWE-776
    Added CPE Configuration OR *cpe:2.3:a:redhat:openshift_container_platform:3.9:*:*:*:*:*:*:* *cpe:2.3:a:redhat:openshift_container_platform:3.10:*:*:*:*:*:*:* *cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 18, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:3905 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:3811 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 31, 2019

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20191031-0006/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 29, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:3239 [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 22, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/kubernetes/kubernetes/issues/83253 No Types Assigned https://github.com/kubernetes/kubernetes/issues/83253 Exploit, Issue Tracking, Mitigation, Third Party Advisory
    Changed Reference Type https://groups.google.com/forum/#!topic/kubernetes-security-announce/jk8polzSUxs No Types Assigned https://groups.google.com/forum/#!topic/kubernetes-security-announce/jk8polzSUxs Mailing List, Third Party Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration OR *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.1.0 up to (including) 1.12.10 *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.2 *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.14.0 up to (excluding) 1.14.8 *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.15.0 up to (excluding) 1.15.5 *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.16.0 up to (excluding) 1.16.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-11253 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-11253 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery CAPEC-197: Exponential Data Expansion Exponential Data Expansion
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.59 }} 0.71%

score

0.90488

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability