CVEvulnerability
CVE-2021-34992
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-11-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 8.8 HIGH — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-502
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Orckestra C1 CMS 6.10. Authentication is required to exploit this vulnerability. The specific flaw exists within Composite.dll. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-14740.
Affected configurations
• orckestra c1 cms 6.10
Related
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11 Patch, Release Notes, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1304/ Third Party Advisory, VDB Entry
- https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11 Patch, Release Notes, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1304/ Third Party Advisory, VDB Entry