External risk intelligence

ZK Framework Information Disclosure Vulnerability

CVE advisoryKnown Exploit

CVE-2022-36537

A vulnerability in ZK Framework's AuUploader component may allow attackers to access sensitive information. This impacts organizations using affected versions, risking data exposure. The business risk involves potential compromise of confidential data and loss of trust.

4Halo Surface Signal

Zkoss Zk Framework

before 8.6.4.29.0.0 to before 9.0.1.39.5.0 to before 9.5.1.39.6.0 to before 9.6.2

External exposure likelihood

Halo Surface Signal score for CVE-2022-36537

The ZK Framework is a component used to build Java-based web applications. Vulnerabilities in framework components like AuUploader that are reachable via standard HTTP POST requests are commonly exposed in internet-facing web applications, portals, and management interfaces, making them a likely target for remote access in typical deployment patterns.

Horizon Alert

Summary of the vulnerability and why it matters

ZK Framework's AuUploader component has a vulnerability that allows unauthorized access to sensitive information. Attackers can exploit this flaw by sending specially crafted requests to the component. The potential business impact includes the exposure of confidential data, which could compromise organizational security and trust.

  • ZK Framework AuUploader component
  • Sensitive information disclosure flaw
  • Risk of data compromise

Attack Path

How an attacker could exploit the issue

Organizations using specific versions of the ZK Framework may be at risk from an attack targeting the AuUploader component. This attack could allow unauthorized access to sensitive information within the web application's context. The vulnerability is exploitable through a crafted POST request.

  • Exposure occurs through the AuUploader component.
  • Attacker sends a crafted POST request.
  • Sensitive information is accessed.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability allows attackers to access sensitive information by sending a crafted request to the AuUploader component. The vulnerability affects multiple versions of the ZK Framework. It is important for organizations to address this issue to protect their data and systems.

  • Likely attacker skill level: Low
  • Required access or conditions: Publicly accessible endpoint
  • Business risk or urgency: High

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

The ZK Framework is vulnerable to information disclosure via a crafted POST request. This vulnerability allows unauthorized access to sensitive data when an attacker targets the AuUploader component. Organizations utilizing the affected versions of ZK Framework face a risk of data exposure, potentially impacting business operations and the confidentiality of information.

  • Identify ZK Framework assets.
  • Reduce exposure or isolate risk.
  • Apply vendor fix, verify, and monitor.

Frequently asked questions

What is ZK Framework and what is it used for?

ZK Framework is an open-source Java framework used to build dynamic, rich, and interactive web applications. It enables developers to create feature-rich user interfaces and web experiences without extensive client-side coding.

What kind of weakness does CVE-2022-36537 represent in ZK Framework?

CVE-2022-36537 is an information disclosure vulnerability. This means an attacker can exploit it to access sensitive data that they should not be able to see, stemming from how the AuUploader component handles requests.

How can an attacker trigger the vulnerability in ZK Framework?

An attacker can trigger this vulnerability by sending a specially crafted POST request to the AuUploader component. It is not triggered if the request is not specifically crafted or if it targets a different component.

Who should be concerned about CVE-2022-36537 based on its exposure?

Organizations using ZK Framework, especially those with internet-facing web applications, portals, or management interfaces, should be concerned. This is because the vulnerability is likely exposed externally and can be targeted by remote attackers.

What is the first step for mitigating CVE-2022-36537?

The initial step is to identify all instances of the ZK Framework within your environment that are running the affected versions. Once identified, you should consult the vendor's recommendations for applying any available fixes or updates.

References