PT-2021-20800 · Orckestra · Orckestra C1 Cms

Le Ngoc Anh · Published 2021-11-11 · Updated 2021-11-17 · CVE-2021-34992

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Orckestra C1 CMS version 6.10

Description: This issue allows remote attackers to execute arbitrary code on affected installations. Authentication is required to exploit this issue. The flaw exists within Composite.dll due to the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this issue to execute code in the context of the service account.

Recommendations: For Orckestra C1 CMS version 6.10, consider restricting access to the Composite.dll module to minimize the risk of exploitation until a patch is available. As a temporary workaround, ensure proper validation of user-supplied data to prevent deserialization of untrusted data.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2021-34992

ZDI-21-1304

Affected Products

Orckestra C1 Cms

References · 4

• https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11 · Patch
• https://zerodayinitiative.com/advisories/ZDI-21-1304 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34992 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34992 · Security Note