#VU28492 Information disclosure in Atlassian Fisheye and Atlassian Crucible - CVE-2020-4016

Vulnerability identifier: #VU28492

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-4016

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Atlassian Fisheye
Client/Desktop applications / Office applications
Atlassian Crucible
Client/Desktop applications / Office applications

Vendor: Atlassian

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in the "/plugins/servlet/jira-blockers/" resource in the crucible-jira-ril plugin. A remote attacker can gain unauthorized access to sensitive information on the system, such as the ID of configured Jira application links.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Atlassian Fisheye: 4.8.0

Atlassian Crucible: 4.8.0

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External links
https://jira.atlassian.com/browse/CRUC-8469
https://jira.atlassian.com/browse/FE-7285

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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