CVE-2023-21890 Code injection in Communications Converged Application Server

Critical 9.8 Published 17 Jan 2023 Updated 17 Sep 2024

Unauthenticated attackers can execute arbitrary code and take over the Oracle Communications Converged Application Server via network access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-21890?

CVE-2023-21890 is a critical code injection vulnerability in Oracle Corporation Communications Converged Application Server, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle Communications Converged Application Server product of Oracle Communications (component: Core). Supported versions that are affected are 7.1.0 and 8.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via UDP to compromise Oracle Communications Converged Application Server. Successful attacks of this vulnerability can result in takeover of Oracle Communications Converged Application Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-94

Which versions are affected by CVE-2023-21890?

It affects 1 product.

Products include Oracle Communications Converged Application Server.

How do I fix CVE-2023-21890?

No fix has been published for CVE-2023-21890 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-21890 being exploited?

There is no known exploitation of CVE-2023-21890 in the wild and no public exploit code.

Sources

Also known as GHSA-r23h-h8pw-fc6p.