CVE-2017-18106: The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in…

PriorityP344high7.5CVSS 3.0

AVNACHPRLUINSUCHIHAH

EPSS

1.26%

66.1th percentile

The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
atlassian	crowd	< 2.9.1	2.9.1
atlassian	crowd	>= unspecified < 2.9.1	2.9.1

CVSS provenance

nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv2.06.0MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P

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