CVE-2021-20759 : Exploit Details and Defense Strategies

This CVE-2021-20759 involves an operational restrictions bypass vulnerability in Cybozu Garoon versions 4.6.0 to 5.0.2. An attacker with remote authenticated access could manipulate Portal data without proper privileges.

Understanding CVE-2021-20759

This section provides insights into the nature of the vulnerability and its impact.

What is CVE-2021-20759?

The CVE-2021-20759 pertains to a security flaw in Cybozu Garoon, enabling a remote authenticated attacker to modify Portal data without adequate permissions.

The Impact of CVE-2021-20759

The vulnerability allows unauthorized alteration of Portal data by a remote authenticated attacker, compromising the integrity and confidentiality of information.

Technical Details of CVE-2021-20759

Here, we delve into the specifics of the vulnerability.

Vulnerability Description

The operational restrictions bypass vulnerability in Cybozu Garoon versions 4.6.0 to 5.0.2 permits a remote authenticated attacker to manipulate Portal data without the necessary privilege.

Affected Systems and Versions

The affected systems are Cybozu Garoon versions 4.6.0 to 5.0.2.

Exploitation Mechanism

By exploiting this vulnerability, a remote authenticated attacker can alter data within the Portal without the appropriate privilege.

Mitigation and Prevention

In this section, we outline steps to mitigate and prevent exploitation of CVE-2021-20759.

Immediate Steps to Take

Users are advised to apply necessary patches and updates to mitigate the vulnerability. Access controls should be enforced to limit unauthorized data alterations.

Long-Term Security Practices

Implement robust access control policies, conduct regular security assessments, and educate users on best security practices to prevent similar vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and software updates to address known vulnerabilities and enhance system security.