Rancher up to 2.1.5 POd access control

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Rancher up to 2.1.5. This affects an unknown part of the component POd Handler. The manipulation leads to access control. This vulnerability is traded as CVE-2018-20321. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Rancher up to 2.1.5. It has been rated as critical. This issue affects some unknown functionality of the component POd Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Rancher 2 through 2.1.5. Any project member with access to the default namespace can mount the netes-default service account in a pod, and then use that pod to execute administrative privileged commands against the k8s cluster. This could be mitigated by isolating the default namespace in a separate project, where only cluster admins can be given permissions to access. As of 2018-12-20, this bug affected ALL clusters created or imported by Rancher.

The weakness was shared 04/10/2019 (Website). The advisory is shared at forums.rancher.com. The identification of this vulnerability is CVE-2018-20321 since 12/20/2018. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-133292, VDB-136125 and VDB-136127 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/20/2018 🔍
04/10/2019 +111 days 🔍
04/10/2019 +0 days 🔍
05/28/2020 +414 days 🔍

Sourcesinfo

Advisory: forums.rancher.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-20321 (🔍)
GCVE (CVE): GCVE-0-2018-20321
GCVE (VulDB): GCVE-100-133289
See also: 🔍

Entryinfo

Created: 04/10/2019 20:29
Updated: 05/28/2020 18:19
Changes: 04/10/2019 20:29 (54), 05/28/2020 18:19 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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