Vulnerability identifier: #VU49187

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27868

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ocularis
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor: Qognify

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the ConnectedChannel_GotMessage() method in the EventCoordinator endpoint. A remote non-authenticated attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ocularis: All versions

---

External links
http://www.zerodayinitiative.com/advisories/ZDI-20-1453/

---

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.