CVE-2021-21751 Explained : Impact and Mitigation

ZTE BigVideo analysis product has an input verification vulnerability that allows an attacker with high privileges to tamper with URLs, causing service exceptions.

Understanding CVE-2021-21751

This CVE pertains to an input verification vulnerability in the ZXIN10 CMS product up to version ZXOMS-BIGDATA-IOPSWEBV3.01.01.04.

What is CVE-2021-21751?

ZTE BigVideo analysis product is affected by an input verification vulnerability due to inconsistencies in front and back verifications, enabling attackers to manipulate URLs.

The Impact of CVE-2021-21751

The vulnerability allows attackers with elevated privileges to tamper with URLs and disrupt services, leading to a potential service outage.

Technical Details of CVE-2021-21751

This section provides specific technical information about the vulnerability.

Vulnerability Description

The vulnerability in ZTE BigVideo analysis product arises from inadequate input verification processes when configuring large screen pages.

Affected Systems and Versions

All versions up to ZXOMS-BIGDATA-IOPSWEBV3.01.01.04 of the ZXIN10 CMS product are impacted by this vulnerability.

Exploitation Mechanism

Attackers with high privileges can exploit this vulnerability by manipulating URLs, potentially causing service exceptions.

Mitigation and Prevention

To address CVE-2021-21751, immediate and long-term security measures should be implemented.

Immediate Steps to Take

System administrators should apply security patches promptly and restrict access to privileged accounts.

Long-Term Security Practices

Regular security assessments and training for staff on secure configuration practices can help prevent such vulnerabilities.

Patching and Updates

Regularly monitor official ZTE security advisories and apply recommended patches and updates to mitigate the risk of exploitation.