Overview
This report provides an analysis of a critical vulnerability, denoted as CVE-2024-55569, which affects a wide range of Samsung’s mobile processors, wearable processors, and modems. This security flaw, due to the absence of a length check, can lead to out-of-bounds writes, potentially compromising system security and leading to data leakage. As Samsung devices are widely used globally, this vulnerability poses a significant threat to user data and system integrity.
Vulnerability Summary
CVE ID: CVE-2024-55569
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Possible system compromise and data leakage
Affected Products
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Product | Affected Versions
Samsung Mobile Processor Exynos | 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400
Samsung Wearable Processor Exynos | 9110, W920, W930, W1000
Samsung Modem | 5123, 5300, 5400
How the Exploit Works
The vulnerability arises from the lack of a length check during data processing in the affected Samsung processors and modems. This absence of a length check can result in out-of-bounds writes when processing excessively long data inputs. An attacker can exploit this vulnerability by sending specially crafted data packets to the target device. This could potentially lead to unauthorized code execution or data leakage.
Conceptual Example Code
Below is a conceptual example of a malicious packet that could exploit the vulnerability:
POST /processor/write HTTP/1.1
Host: target.example.com
Content-Type: application/octet-stream
{ "data": "A".repeat(1000000) } // An excessively long stringIn this example, the attacker sends a POST request with an excessively long string as the data payload. This unexpected lengthy data could trigger the out-of-bounds write vulnerability in the absence of a proper length check.
Mitigation Guidance
To mitigate this vulnerability, users are urged to apply the latest patches provided by Samsung. If such patches are not available, users should consider deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure to detect and prevent potential attacks.
