MitM attack in Atlassian Confluence Server and Data Center

1) Man-in-the-Middle (MitM) attack

EUVDB-ID: #VU23806

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15006

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a man-in-the-middle attack.

The vulnerability exists within the Confluence Previews plugin in Confluence Server and Confluence Data Center. A remote attacker can perform a MitM attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 6.11.0 - 7.1.1

External links

http://confluence.atlassian.com/doc/confluence-security-advisory-2019-12-18-982324349.html
http://jira.atlassian.com/browse/CONFSERVER-59244
http://seclists.org/bugtraq/2019/Dec/36
http://twitter.com/SwiftOnSecurity/status/1202034106495832067

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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