Vulnerability CVE-2021-34992


Published: 2021-11-15   Modified: 2021-11-17

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.

Type:

CWE-502

(Deserialization of Untrusted Data)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Orckestra -> C1 cms 

 References:
https://www.zerodayinitiative.com/advisories/ZDI-21-1304/
https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11

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