1) Spoofing attack

EUVDB-ID: #VU23471

Risk: Low

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

CVE-ID: CVE-2019-1490

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data. A remote authenticated attacker can send a specially crafted request to the server, trick a victim to click a specially crafted URL and spoof page content.

Successful exploitation of the vulnerability may allow to perform cross-site scripting attacks on affected systems and run scripts in the security context of the current user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Skype for Business Server: 2019 CU2

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CPE2.3

• cpe:2.3:a:microsoft:skype_for_business_server:2019 CU2:*:*:*:*:*:*:*
• Full software list in CPE2.3 format available after registration.

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1490

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.