8.8
HIGH
CVE-2021-34992
Orckestra C1 CMS Remote Code Execution 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.

INFO

Published Date :

Nov. 15, 2021, 4:15 p.m.

Last Modified :

Nov. 17, 2021, 4:35 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-34992 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-34992 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Orckestra c1_cms
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-34992.

URL Resource
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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 5 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Feb. 27, 2024, 3:28 p.m. This repo has been linked 22 different CVEs too.

dotnet 反序列化学习笔记

Updated: 1 month, 1 week ago
412 stars 40 fork 40 watcher
Born at : April 19, 2021, 9:54 a.m. This repo has been linked 8 different CVEs too.

分类和整理自己看过的所有文章,方便知识体系的建立和查漏补缺

Updated: 1 month ago
156 stars 21 fork 21 watcher
Born at : Feb. 10, 2021, 6:15 p.m. This repo has been linked 6 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-34992 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-34992 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Nov. 17, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11 No Types Assigned https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11 Patch, Release Notes, Third Party Advisory
    Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-1304/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-1304/ Third Party Advisory, VDB Entry
    Added CWE NIST CWE-502
    Added CPE Configuration OR *cpe:2.3:a:orckestra:c1_cms:6.10:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-34992 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-34992 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.89 }} 0.03%

score

0.82428

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability