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RubySecRUBY:CONSUL-2019-16377

HistorySep 22, 2019 - 9:00 p.m.

Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly

2019-09-2221:00:00

RubySec

github.com

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

JSON

With the consul ruby gem before 1.0.3, if a controller checks multiple powers
using :if or :except conditions, these conditions are erroneously applied
to all power checks in that controller. This can lead to skipped power checks
and hence unauthenticated access to certain controller actions.

Affected configurations

Vulners

Node

rubyconsulRange≤1.0.3

VendorProductVersionCPE
rubyconsul*cpe:2.3:a:ruby:consul:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ruby	consul	*	cpe:2.3:a:ruby:consul::::::::

References

github.com/makandra/consul/issues/49

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

JSON

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