Cross-site scripting in Atlassian FishEye and Crucible

Published: 2018-02-21

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2017-18093 CVE-2017-18091
CWE-ID	CWE-79
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Atlassian Crucible Client/Desktop applications / Office applications Atlassian Fisheye Client/Desktop applications / Office applications
Vendor	Atlassian

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU10665

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18093

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update to version 4.4.3 or 4.5.0.

Vulnerable software versions

Atlassian Crucible: 4.0.0 - 4.4.5

Atlassian Fisheye: 4.0.0 - 4.4.5

External links

http://jira.atlassian.com/browse/CRUC-8175

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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

2) Cross-site scripting

EUVDB-ID: #VU10666