CVE-2021-27444 : Exploit Details and Defense Strategies

This CVE-2021-27444 article provides an in-depth understanding of the Weintek EasyWeb cMT Improper Access Control vulnerability.

Understanding CVE-2021-27444

CVE-2021-27444 is a vulnerability affecting the Weintek cMT product line, allowing unauthenticated attackers to perform administrative actions on behalf of a legitimate administrator.

What is CVE-2021-27444?

The Weintek cMT product line is vulnerable to various improper access controls, enabling remote unauthorized access and sensitive information retrieval.

The Impact of CVE-2021-27444

With a CVSS base score of 9.8, this critical vulnerability poses a high threat to confidentiality, integrity, and availability, with low attack complexity and no privileges required.

Technical Details of CVE-2021-27444

This section covers the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability allows unauthenticated attackers to access and download sensitive information and carry out administrative actions remotely.

Affected Systems and Versions

The affected Weintek products include cMT-SVR-1xx/2xx, cMT-G01/G02, cMT-G03/G04, cMT3071/cMT3072/cMT3090/cMT3103/cMT3151, cMT-HDM, cMT-FHD, and cMT-CTRL01 with specific versions less than the indicated dates.

Exploitation Mechanism

The vulnerability can be exploited by an unauthenticated attacker over the network, leveraging the improper access controls.

Mitigation and Prevention

To address CVE-2021-27444, immediate steps and long-term security practices are essential.

Immediate Steps to Take

Weintek has released OS upgrades for the affected products. Refer to Weintek’s Technical Notice for mitigating these vulnerabilities.

Long-Term Security Practices

In addition to applying patches, it is crucial to follow security best practices and conduct regular security assessments.

Patching and Updates

Regularly update your Weintek products with the latest firmware to ensure protection from known vulnerabilities.