Medium severity · published Mar 25, 2022
CVE-2021-22100
In cloud foundry CAPI versions prior to 1.122, a denial-of-service attack in which a developer can push a service broker that (accidentally or maliciously) causes CC instances to…
5.3
CVSS
0.9%
EPSS
No
On KEV
Description
In cloud foundry CAPI versions prior to 1.122, a denial-of-service attack in which a developer can push a service broker that (accidentally or maliciously) causes CC instances to timeout and fail is possible. An attacker can leverage this vulnerability to cause an inability for anyone to push or manage apps.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
Capi-release · Cloudfoundry
before 1.122.0 · source: NVD
CF
Cf-deployment · Cloudfoundry
before 17.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22100
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22100
Vendor Advisory
https://www.cloudfoundry.org/blog/cve-2021-22100-cloud-controller-is-vulnerable-to-denial-of-service-due-to-misbehaving-service-brokers/
More from Capi-release
8.8
CVE-2020-5417
Cloud Foundry CAPI (Cloud Controller), versions prior to 1.97.0, when used in a deployment where an app domain is also the system domain (which is true in the default CF…
8.8
CVE-2018-1195
In Cloud Controller versions prior to 1.46.0, cf-deployment versions prior to 1.3.0, and cf-release versions prior to 283, Cloud Controller accepts refresh tokens for…
8.1
CVE-2023-20881
Cloud foundry instances having CAPI version between 1.140 and 1.152.0 along with loggregator-agent v7+ may override other users syslog drain credentials if they're aware of the…
8.1
CVE-2019-3785
Cloud Controller provides signed URL with write authorization to read only user
8.1
CVE-2018-1266
Cloud Foundry Cloud Controller, versions prior to 1.52.0, contains information disclosure and path traversal vulnerabilities