CVE-2022-24789 Deserialization of untrusted data in C1 CMS.

What is CVE-2022-24789?

CVE-2022-24789 is a high-severity server-side request forgery vulnerability in Orckestra C1-CMS-Foundation, published on 28 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

C1 CMS is an open-source, .NET based Content Management System (CMS). Versions prior to 6.12 allow an authenticated user to exploit Server Side Request Forgery (SSRF) by causing the server to make arbitrary GET requests to other servers in the local network or on localhost. The attacker may also truncate arbitrary files to zero size (effectively delete them) leading to denial of service (DoS) or altering application logic. The authenticated user may unknowingly perform the actions by visiting a specially crafted site. Patched in C1 CMS v6.12, no known workarounds exist.

Weakness: CWE-918

Which versions are affected by CVE-2022-24789?

2 open source packages ship an affected version, including C1CMS.Assemblies. It affects 1 product.

Products include Orckestra C1 Cms.

How do I fix CVE-2022-24789?

Upgrade C1CMS.Assemblies to 6.12.8122.18346 or later.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2022-24789 being exploited?

There is no known exploitation of CVE-2022-24789 in the wild and no public exploit code.

Other vulnerabilities in Orckestra C1-CMS-Foundation

• CVE-2022-39256 Orckestra C1 CMS's deserialization of untrusted data allows for arbitrary code execution. Critical 9.0
• CVE-2021-34992 Deserialization in C1 CMS High 8.8
• CVE-2019-18211 Deserialization in n/a High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as GHSA-8pp6-8x4q-c5mx, GHSA-j9c2-gr6m-pp45.