Overview
A serious vulnerability has been identified in Voltronic Power’s ViewPower, ViewPower Pro, and PowerShield Netguard software. The vulnerability, dubbed CVE-2022-31491, potentially puts all systems running these versions at risk of being compromised. This vulnerability is a major concern as it allows unauthenticated remote attackers to run arbitrary code via an unspecified web interface, regardless of the state or presence of any managed UPS. This opens up a significant risk to system integrity and data security.
Vulnerability Summary
CVE ID: CVE-2022-31491
Severity: Critical (10.0 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Voltronic Power ViewPower | up to 1.04-24215
Voltronic Power ViewPower Pro | up to 2.0-22165
PowerShield Netguard | before 1.04-23292
How the Exploit Works
This exploit takes advantage of a flaw in the web interface of the affected products. An attacker can send a specially crafted payload to the web interface, which is improperly processed by the system. This allows the attacker to execute arbitrary code on the system, potentially gaining full control over it.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. In this case, an HTTP request is sent with a malicious payload to a vulnerable endpoint.
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"malicious_payload": "..."
}Please note that this is only a conceptual example and real-world exploits can be much more complex and tailored to specific systems.
Mitigation Guidance
The most straightforward way to mitigate this vulnerability is by applying the vendor’s patch. If for some reason this is not feasible, a temporary mitigation could be to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and block exploit attempts. However, these are only temporary measures and updating the software to a patched version should be a priority.