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vulnrichmentGitHub_MVULNRICHMENT:CVE-2024-39690
HistoryAug 20, 2024 - 2:33 p.m.

CVE-2024-39690 Capsule tenant owner with "patch namespace" permission can hijack system namespaces

2024-08-2014:33:24
CWE-863
GitHub_M
github.com
2
capsule
kubernetes
multi-tenancy
security vulnerability
namespace hijack

CVSS3

8.4

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

AI Score

7.4

Confidence

Low

EPSS

0.001

Percentile

20.0%

SSVC

Exploitation

poc

Automatable

no

Technical Impact

total

Capsule is a multi-tenancy and policy-based framework for Kubernetes. In Capsule v0.7.0 and earlier, the tenant-owner can patch any arbitrary namespace that has not been taken over by a tenant (i.e., namespaces without the ownerReference field), thereby gaining control of that namespace.

CNA Affected

[
  {
    "vendor": "projectcapsule",
    "product": "capsule",
    "versions": [
      {
        "status": "affected",
        "version": "<= 0.7.0"
      }
    ]
  }
]

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:clastix:capsule:*:*:*:*:*:*:*:*"
    ],
    "vendor": "clastix",
    "product": "capsule",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "0.7.0"
      }
    ],
    "defaultStatus": "unknown"
  }
]

CVSS3

8.4

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

AI Score

7.4

Confidence

Low

EPSS

0.001

Percentile

20.0%

SSVC

Exploitation

poc

Automatable

no

Technical Impact

total

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