Vulnerability identifier: #VU31158

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20238

CWE-ID: CWE-384

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Crowd
Server applications / Directory software, identity management

Vendor: Atlassian

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

Various rest resources in Atlassian Crowd before version 3.2.7 and from version 3.3.0 before version 3.3.4 allow remote attackers to authenticate using an expired user session via an insufficient session expiration vulnerability.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Crowd: 3.3.0 - 3.3.3

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External links
http://www.securityfocus.com/bid/107036
http://jira.atlassian.com/browse/CWD-5361

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.