Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2020-5423
- cpe:2.3:a:cloudfoundry:capi-release:*:*:*:*:*:*:*:*
- cpe:2.3:a:cloudfoundry:cf-deployment:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-5423
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-5423
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Pivotal Software, Inc. | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-5423
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by:
- nvd@nist.gov (Primary)
- security@pivotal.io (Secondary)
References for CVE-2020-5423
-
https://www.cloudfoundry.org/blog/cve-2020-5423
CVE-2020-5423: Cloud Controller is vulnerable to denial of service via YAML parsing | Cloud FoundryVendor Advisory
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