Vulnerability identifier: #VU71251

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-2023-21890

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Oracle Communications Converged Application Server
Server applications / Application servers

Vendor: Oracle

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 parseCert() function in Oracle WebRTC Session Controller. A remote 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

Oracle Communications Converged Application Server: 7.1.0 - 8.0.0

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External links
http://www.oracle.com/security-alerts/cpujan2023.html
http://www.zerodayinitiative.com/advisories/ZDI-23-175/

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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.