Rancher up to 2.2.3 fluentd Configuration command injection

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

Summaryinfo

A vulnerability was found in Rancher up to 2.2.3. It has been classified as critical. This affects an unknown part of the component fluentd Configuration Handler. The manipulation leads to command injection. This vulnerability is uniquely identified as CVE-2019-12303. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Rancher up to 2.2.3. This issue affects an unknown code block of the component fluentd Configuration Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Rancher 2 through 2.2.3, Project owners can inject additional fluentd configuration to read files or execute arbitrary commands inside the fluentd container.

The weakness was disclosed 06/06/2019 (Website). It is possible to read the advisory at forums.rancher.com. The identification of this vulnerability is CVE-2019-12303 since 05/23/2019. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

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

The entries VDB-133289, VDB-133292 and VDB-136125 are pretty similar. Be aware that VulDB is the high quality source for 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: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
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

05/23/2019 🔍
06/06/2019 +14 days 🔍
06/07/2019 +1 days 🔍
06/20/2020 +379 days 🔍

Sourcesinfo

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

CVE: CVE-2019-12303 (🔍)
GCVE (CVE): GCVE-0-2019-12303
GCVE (VulDB): GCVE-100-136127
See also: 🔍

Entryinfo

Created: 06/07/2019 08:23
Updated: 06/20/2020 15:43
Changes: 06/07/2019 08:23 (54), 06/20/2020 15:43 (1)
Complete: 🔍
Cache ID: 216::103

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