Vulnerability Details : CVE-2021-34992
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.
Vulnerability category: Execute code
Products affected by CVE-2021-34992
- cpe:2.3:a:orckestra:c1_cms:6.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-34992
0.89%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-34992
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Zero Day Initiative | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-34992
-
The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.Assigned by:
- nvd@nist.gov (Primary)
- zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2021-34992
-
https://www.zerodayinitiative.com/advisories/ZDI-21-1304/
ZDI-21-1304 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11
Release C1 CMS 6.11 · Orckestra/C1-CMS-Foundation · GitHubPatch;Release Notes;Third Party Advisory
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