Overview
This report addresses a significant cybersecurity vulnerability – CVE-2023-48166, which impacts the Atos Unify OpenScape Voice V10 systems. This vulnerability, if left unpatched, poses a considerable risk by potentially enabling an unauthenticated attacker to view and compromise sensitive files within the local file system. This could lead to data leakage or an all-out system compromise.
Vulnerability Summary
CVE ID: CVE-2023-48166
Severity: High (7.5 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
Atos Unify OpenScape Voice V10 | Before V10R3.26.1
How the Exploit Works
The vulnerability lies in the SOAP Server integrated within the Atos Unify OpenScape Voice V10. An attacker can exploit this vulnerability by performing a directory traversal attack to gain access to arbitrary files in the local file system. This access can facilitate the viewing of sensitive files and potentially compromise the underlying system.
Conceptual Example Code
Here’s a conceptual example of a maliciously crafted HTTP request, which could potentially exploit this vulnerability:
GET /../../../../etc/passwd HTTP/1.1
Host: vulnerable-server.comThe above request attempts to traverse directories in an attempt to access the “/etc/passwd” file, which contains sensitive user account information.
Mitigation Guidance
To mitigate the risk associated with CVE-2023-48166, it is recommended that users apply the latest patch provided by the vendor (V10R3.26.1 or later). In the absence of an available patch, users may employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation method. However, this should not replace the need for applying the vendor patch once it’s available.
