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PivotalCVELIST:CVE-2020-5423

HistoryDec 01, 2020 - 12:00 a.m.

CVE-2020-5423 Cloud Controller is vulnerable to denial of service via YAML parsing

2020-12-0100:00:00

CWE-400

pivotal

www.cve.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

42.6%

JSON

CAPI (Cloud Controller) versions prior to 1.101.0 are vulnerable to a denial-of-service attack in which an unauthenticated malicious attacker can send specially-crafted YAML files to certain endpoints, causing the YAML parser to consume excessive CPU and RAM.

CNA Affected

[
  {
    "product": "CAPI",
    "vendor": "Cloud Foundry",
    "versions": [
      {
        "lessThan": "1.101.0",
        "status": "affected",
        "version": "All",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "CF Deployment",
    "vendor": "Cloud Foundry",
    "versions": [
      {
        "lessThan": "15.0.0",
        "status": "affected",
        "version": "All",
        "versionType": "custom"
      }
    ]
  }
]

References

www.cloudfoundry.org/blog/cve-2020-5423

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

42.6%

JSON

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