CVE-2020-8555
What it is
The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data exposure.
- Exploit odds
- 3.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.7% in the next 30 days (EPSS).
- Severity: 6.3 MEDIUM (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 3.7% · EPSS, next 30 days
- Weakness
- CWE-918 · Server-side request forgery
- Record status
- Modified
Affected
- Kubernetes < 1.15.11
- Kubernetes < 1.16.9
- Kubernetes < 1.17.5
- Kubernetes 1.18.0
- Fedoraproject Fedora 32
Attack profile CVSS 3.1 · 6.3
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-8555.md and follow it. Check whether this project is affected by CVE-2020-8555. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://www.openwall.com/lists/oss-security/2020/06/01/4
- http://www.openwall.com/lists/oss-security/2021/05/04/8
- https://github.com/kubernetes/kubernetes/issues/91542
- https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
- https://security.netapp.com/advisory/ntap-20200724-0005/
- http://www.openwall.com/lists/oss-security/2020/06/01/4
- http://www.openwall.com/lists/oss-security/2021/05/04/8
- https://github.com/kubernetes/kubernetes/issues/91542
- https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
- https://security.netapp.com/advisory/ntap-20200724-0005/