CVE-2021-34992 — HIGH (8.8)

Vulnerability 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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Orckestra	C1 Cms	6.10

Related Weaknesses (CWE)

CWE-502

References

https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11PatchRelease NotesThird Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1304/Third Party AdvisoryVDB Entry
https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11PatchRelease NotesThird Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1304/Third Party AdvisoryVDB Entry

FAQ

What is CVE-2021-34992?

CVE-2021-34992 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 exi...

How severe is CVE-2021-34992?

CVE-2021-34992 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34992?

Check the references section above for vendor advisories and patch information. Affected products include: Orckestra C1 Cms.