Kubernetes kube-controller-manager up to 1.15.11/1.16.8/1.17.4 server-side request forgery
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.3 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in Kubernetes kube-controller-manager up to 1.15.11/1.16.8/1.17.4 (Virtualization Software). Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality. The summary by CVE 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).
The weakness was released 06/05/2020 (GitHub Repository). The advisory is shared at github.com. This vulnerability is known as CVE-2020-8555 since 02/03/2020. The exploitation appears to be difficult. The attack can be launched remotely. The successful exploitation needs a single authentication. Neither technical details nor an exploit are publicly available.
Upgrading to version 1.15.12, 1.16.9, 1.17.5 or 1.18.0 eliminates this vulnerability.
Product
Type
Vendor
Name
Version
- 1.15.0
- 1.15.1
- 1.15.2
- 1.15.3
- 1.15.4
- 1.15.5
- 1.15.6
- 1.15.7
- 1.15.8
- 1.15.9
- 1.15.10
- 1.15.11
- 1.16.0
- 1.16.1
- 1.16.2
- 1.16.3
- 1.16.4
- 1.16.5
- 1.16.6
- 1.16.7
- 1.16.8
- 1.17.0
- 1.17.1
- 1.17.2
- 1.17.3
- 1.17.4
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.9VulDB Meta Temp Score: 4.7
VulDB Base Score: 3.5
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.3
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Server-side request forgeryCWE: CWE-918
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: kube-controller-manager 1.15.12/1.16.9/1.17.5/1.18.0
Timeline
02/03/2020 🔍06/05/2020 🔍
06/06/2020 🔍
10/22/2020 🔍
Sources
Advisory: github.comStatus: Not defined
Confirmation: 🔍
CVE: CVE-2020-8555 (🔍)
Entry
Created: 06/06/2020 09:15Updated: 10/22/2020 17:30
Changes: 06/06/2020 09:15 (38), 06/06/2020 09:20 (12), 10/22/2020 17:22 (1), 10/22/2020 17:30 (1)
Complete: 🔍
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