External risk intelligence

QNAP Photo Station Vulnerability Allows System File Modification.

CVE advisoryKnown Exploit

CVE-2022-27593

A vulnerability in QNAP Photo Station allows attackers to modify system files, posing a business risk to affected organizations. This weakness stems from external resource reference handling and could impact data integrity and system functionality. Organizations using QNAP NAS devices with Photo Station should address

4Halo Surface Signal

Qnap Photo Station

before 5.2.14before 5.4.15before 5.7.18before 6.0.22before 6.1.2

External exposure likelihood

Halo Surface Signal score for CVE-2022-27593

Photo Station is a web-based application hosted on QNAP NAS devices. It is commonly deployed in configurations that allow remote access for photo management and sharing, often making the web interface and its associated services reachable from the public internet in real-world deployments.

Horizon Alert

Summary of the vulnerability and why it matters

QNAP NAS devices with Photo Station are susceptible to a vulnerability that allows for the modification of system files. This weakness stems from how the application handles externally controlled references to resources. Exploitation of this flaw can lead to significant business risk due to the potential compromise of critical system data and functionality.

Vulnerable component: QNAP Photo Station
Core weakness: External resource reference handling
Main business impact: System file modification

Attack Path

How an attacker could exploit the issue

A vulnerability in Photo Station allows an attacker to modify system files by exploiting an externally controlled reference to a resource. This could impact the integrity of system files on affected QNAP NAS devices. The attack requires the Photo Station application to be exposed externally.

External access to Photo Station.
Attacker exploits vulnerability.
System files are modified.

Live Threat

Current exploitation, exposure, and threat context

A vulnerability in QNAP Photo Station could permit attackers to modify system files. This could impact the integrity and availability of data and systems. Organizations utilizing QNAP NAS devices with Photo Station should address this vulnerability to mitigate potential business risk.

Likely attacker skill level: Low.
Required access or conditions: Unauthenticated, network-accessible.
Business risk or urgency: High.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

A vulnerability affecting QNAP NAS devices running Photo Station has been identified, allowing attackers to modify system files. This could lead to significant business risk for organizations utilizing these systems. Prompt action is necessary to mitigate potential impacts on operations and data integrity.

Identify QNAP NAS devices with Photo Station.
Limit external access to affected systems.
Apply vendor updates and verify fixes.

Frequently asked questions

What is the specific vulnerability affecting QNAP Photo Station and what type of weakness does it represent?

The vulnerability in QNAP Photo Station is related to how it handles externally controlled references to resources. This is classified as CWE-610, which indicates a weakness where an external party can control a reference to a resource, potentially leading to unintended actions. This flaw allows an attacker to modify system files on affected devices.

How could an attacker exploit the QNAP Photo Station vulnerability, and what is the impact on the system's scope?

An attacker can exploit this vulnerability by leveraging an externally controlled reference to a resource. This could allow them to modify system files on the QNAP NAS device. The vulnerability does not appear to require any specific privileges or user interaction, and it affects the local system scope where the Photo Station application is installed.

What is the relevance of CVE-2022-27593, and how does Halo Surface Signal assess its risk?

CVE-2022-27593 is a critical vulnerability affecting QNAP Photo Station that allows attackers to modify system files. Halo Surface Signal assesses its risk as 'Likely' due to Photo Station being a web-based application often exposed to the internet for remote management and sharing, increasing the attack surface.

What action should organizations take to address the QNAP Photo Station vulnerability?

Organizations using QNAP NAS devices with Photo Station should prioritize applying vendor-provided updates. Specifically, they should ensure their Photo Station is updated to versions 6.1.2 or later for QTS 5.0.1, 6.0.22 or later for QTS 5.0.0/4.5.x, 5.7.18 or later for QTS 4.3.6, 5.4.15 or later for QTS 4.3.3, and 5.2.14 or later for QTS 4.2.6. Limiting external access to affected systems can also help mitigate risk.

What are the key details about the QNAP Photo Station vulnerability, including its severity and affected products?

The QNAP Photo Station vulnerability, CVE-2022-27593, is rated as CRITICAL with a base CVSS score of 9.1. It affects QNAP NAS devices running Photo Station and QTS. The vulnerability allows an attacker to modify system files and was identified as being used in a Deadbolt ransomware campaign.

References

Written by Nicholas Merritt

External-surface CVE analysis and Halo Surface Signal prioritization for Halo Threat Intelligence.