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

7.5HIGH

Key Information:

Vendor

Cloud Foundry

Status
Capi
Cf Deployment
Vendor
CVE Published:
2 December 2020

What is CVE-2020-5423?

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.

Affected Version(s)

CAPI All < 1.101.0

CF Deployment All < 15.0.0

References

https://www.cloudfoundry.org/blog/cve-2020-5423
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

CVSS V3.0

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.