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CVE-2020-7036 Explained : Impact and Mitigation

Learn about CVE-2020-7036, an XXE vulnerability in Avaya Callback Assist allowing unauthorized access. Find mitigation steps and patching details here.

An XML External Entities (XXE) vulnerability in Avaya Callback Assist could allow an authenticated attacker to access information on the system.

Understanding CVE-2020-7036

Avaya Callback Assist is affected by an XXE vulnerability that could lead to unauthorized access to sensitive data.

What is CVE-2020-7036?

The vulnerability in Avaya Callback Assist allows a remote attacker to gain read access to stored information on the system.

The Impact of CVE-2020-7036

        CVSS Base Score: 8.1 (High)
        Attack Vector: Network
        Confidentiality Impact: High
        Availability Impact: High
        Attack Complexity: Low
        Privileges Required: Low
        Scope: Unchanged
        The vulnerability affects all 4.0.x versions before 4.7.1.1 Patch 7 of Callback Assist.

Technical Details of CVE-2020-7036

Avaya Callback Assist's XXE vulnerability has the following technical details:

Vulnerability Description

The vulnerability allows an authenticated attacker to exploit XML External Entities, potentially leading to unauthorized data access.

Affected Systems and Versions

        Product: Callback Assist
        Vendor: Avaya
        Affected Versions: All 4.0.x versions before 4.7.1.1 Patch 7

Exploitation Mechanism

The attacker needs network access to exploit the vulnerability and gain unauthorized read access to system data.

Mitigation and Prevention

To address CVE-2020-7036, consider the following steps:

Immediate Steps to Take

        Apply the vendor-provided patch or update to version 4.7.1.1 Patch 7 or later.
        Monitor system logs for any suspicious activities.

Long-Term Security Practices

        Regularly update and patch software to prevent known vulnerabilities.
        Implement network segmentation to limit the impact of potential attacks.
        Conduct regular security assessments and audits to identify and address security gaps.

Patching and Updates

        Avaya has released a patch (4.7.1.1 Patch 7) to address the vulnerability. Ensure timely application of patches to secure systems.

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