Vulnerability identifier: #VU25200
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-451
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Office Online Server
Server applications /
Other server solutions
Vendor: Microsoft
Description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to the Office Online Server does not validate origin in cross-origin communications correctly. A remote attacker can send a specially crafted request to an affected site, perform cross-origin attacks on affected systems and gain access to sensitive information.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Office Online Server : 2016
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0695
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.