CVE-2020-35566 Vulnerability Analysis & Exploit Details

CVE-2020-35566
Vulnerability Scoring

5.3
/10
Significant Risk

Security assessments indicate that CVE-2020-35566 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2020-35566 Details

Status: Analyzed

Last updated: 🕓 16 Feb 2023, 04:00 UTC
Originally published on: 🕓 16 Feb 2021, 16:15 UTC

Time between publication and last update: 729 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2020-35566 Vulnerability Summary

CVE-2020-35566: An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2. An attacker can read arbitrary JSON files via Local File Inclusion.

Assessing the Risk of CVE-2020-35566

Access Complexity Graph

The exploitability of CVE-2020-35566 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2020-35566

With low attack complexity and no required privileges, CVE-2020-35566 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-35566, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2020-35566, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2020-35566 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2020-35566 poses no threat to data integrity.
  • Availability: None
    CVE-2020-35566 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.07% (probability of exploit)

EPSS Percentile: 33.8% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 66.2% of others.

CVE-2020-35566 References

External References

CWE Common Weakness Enumeration

CWE-706

CAPEC Common Attack Pattern Enumeration and Classification

  • Redirect Access to Libraries CAPEC-159 An adversary exploits a weakness in the way an application searches for external libraries to manipulate the execution flow to point to an adversary supplied library or code base. This pattern of attack allows the adversary to compromise the application or server via the execution of unauthorized code. An application typically makes calls to functions that are a part of libraries external to the application. These libraries may be part of the operating system or they may be third party libraries. If an adversary can redirect an application's attempts to access these libraries to other libraries that the adversary supplies, the adversary will be able to force the targeted application to execute arbitrary code. This is especially dangerous if the targeted application has enhanced privileges. Access can be redirected through a number of techniques, including the use of symbolic links, search path modification, and relative path manipulation.
  • Create files with the same name as files protected with a higher classification CAPEC-177 An attacker exploits file location algorithms in an operating system or application by creating a file with the same name as a protected or privileged file. The attacker could manipulate the system if the attacker-created file is trusted by the operating system or an application component that attempts to load the original file. Applications often load or include external files, such as libraries or configuration files. These files should be protected against malicious manipulation. However, if the application only uses the name of the file when locating it, an attacker may be able to create a file with the same name and place it in a directory that the application will search before the directory with the legitimate file is searched. Because the attackers' file is discovered first, it would be used by the target application. This attack can be extremely destructive if the referenced file is executable and/or is granted special privileges based solely on having a particular name.
  • Passing Local Filenames to Functions That Expect a URL CAPEC-48 This attack relies on client side code to access local files and resources instead of URLs. When the client browser is expecting a URL string, but instead receives a request for a local file, that execution is likely to occur in the browser process space with the browser's authority to local files. The attacker can send the results of this request to the local files out to a site that they control. This attack may be used to steal sensitive authentication data (either local or remote), or to gain system profile information to launch further attacks.
  • DLL Side-Loading CAPEC-641 An adversary places a malicious version of a Dynamic-Link Library (DLL) in the Windows Side-by-Side (WinSxS) directory to trick the operating system into loading this malicious DLL instead of a legitimate DLL. Programs specify the location of the DLLs to load via the use of WinSxS manifests or DLL redirection and if they aren't used then Windows searches in a predefined set of directories to locate the file. If the applications improperly specify a required DLL or WinSxS manifests aren't explicit about the characteristics of the DLL to be loaded, they can be vulnerable to side-loading.

Vulnerable Configurations

  • cpe:2.3:a:mbconnectline:mbconnect24:-:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mbconnect24:-:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mbconnect24:2.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mbconnect24:2.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mbconnect24:2.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mbconnect24:2.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mbconnect24:2.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mbconnect24:2.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mbconnect24:2.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mbconnect24:2.8.0:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mbconnect24:2.11.2:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mbconnect24:2.11.2:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mymbconnect24:-:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mymbconnect24:-:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mymbconnect24:2.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mymbconnect24:2.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mymbconnect24:2.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mymbconnect24:2.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mymbconnect24:2.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mymbconnect24:2.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mymbconnect24:2.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mymbconnect24:2.8.0:*:*:*:*:*:*:*
  • cpe:2.3:a:mbconnectline:mymbconnect24:2.11.2:*:*:*:*:*:*:*
    cpe:2.3:a:mbconnectline:mymbconnect24:2.11.2:*:*:*:*:*:*:*
  • cpe:2.3:a:helmholz:myrex24:2.11.2:*:*:*:*:*:*:*
    cpe:2.3:a:helmholz:myrex24:2.11.2:*:*:*:*:*:*:*
  • cpe:2.3:a:helmholz:myrex24.virtual:2.11.2:*:*:*:*:*:*:*
    cpe:2.3:a:helmholz:myrex24.virtual:2.11.2:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2020-35566: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-43903 – NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
  • CVE-2025-3796 – A vulnerability classified as critical has been found in PHPGurukul Men Salon Management System 1.0. This affects an unknown part of the file /admi...
  • CVE-2025-32953 – z80pack is a mature emulator of multiple platforms with 8080 and Z80 CPU. In version 1.38 and prior, the `makefile-ubuntu.yml` workflow file uses `...
  • CVE-2025-29058 – An issue in Qimou CMS v.3.34.0 allows a remote attacker to execute arbitrary code via the upgrade.php component.
  • CVE-2024-53591 – An issue in the login page of Seclore v3.27.5.0 allows attackers to bypass authentication via a brute force attack.