CVE-2017-18894: An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. Sometimes. resource-owner…

PriorityP339high8.1CVSS 3.1

AVNACLPRLUINSUCHIHAN

EPSS

0.82%

53.5th percentile

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. Sometimes. resource-owner authorization is bypassed, allowing account takeover.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 0 < 4.0.5+incompatible	4.0.5+incompatible
github.com	mattermost_mattermost-server	>= 0 < 4.0.5	4.0.5
github.com	mattermost_mattermost-server	>= 4.1.0 < 4.1.1	4.1.1
github.com	mattermost_mattermost-server	>= 4.1.0+incompatible < 4.1.1+incompatible	4.1.1+incompatible
github.com	mattermost_mattermost-server	>= 4.2.0-rc1 < 4.2.0	4.2.0
github.com	mattermost_mattermost-server	>= 4.2.0-rc1+incompatible < 4.2.0+incompatible	4.2.0+incompatible
mattermost	mattermost_server	< 4.0.5	4.0.5
mattermost	mattermost_server	—	—
mattermost	mattermost_server	>= 4.1.0 < 4.1.1	4.1.1

CVSS provenance

nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

nvdv2.05.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:N

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