8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
7.9 High
AI Score
Confidence
High
6.4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
0.556 Medium
EPSS
Percentile
97.6%
The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.
id: CVE-2019-11248
info:
name: Debug Endpoint pprof - Exposure Detection
author: 0xceeb,ritikchaddha
severity: high
description: |
The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.
impact: |
An attacker can exploit this vulnerability to gather sensitive information, potentially leading to further attacks.
remediation: |
Disable or restrict access to the Debug Endpoint pprof to prevent unauthorized access.
reference:
- https://medium.com/bugbountywriteup/my-first-bug-bounty-21d3203ffdb0
- http://mmcloughlin.com/posts/your-pprof-is-showing
- https://github.com/kubernetes/kubernetes/issues/81023
- https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ
- https://nvd.nist.gov/vuln/detail/CVE-2019-11248
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
cvss-score: 8.2
cve-id: CVE-2019-11248
cwe-id: CWE-862,CWE-419
epss-score: 0.69166
epss-percentile: 0.97712
cpe: cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
metadata:
max-request: 2
vendor: kubernetes
product: kubernetes
tags: cve2019,cve,debug,kubernetes,kubelet,devops,unauth,disclosure
http:
- method: GET
path:
- "{{BaseURL}}/debug/pprof/"
- "{{BaseURL}}/debug/pprof/goroutine?debug=1"
stop-at-first-match: true
matchers:
- type: word
words:
- "Types of profiles available:"
- "Profile Descriptions"
- "goroutine profile: total"
condition: or
# digest: 4b0a00483046022100fd3a732a5da554e6fb8171ff8f9c6848079e0878dea0e8bf1909ca7be3a448d2022100adf7b0864a3243dd674f556d97fb7a081a16d4ce39b692f5b16f6d35ec27a88f:922c64590222798bb761d5b6d8e72950
8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
7.9 High
AI Score
Confidence
High
6.4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
0.556 Medium
EPSS
Percentile
97.6%