Overview
The CVE-2024-49714 vulnerability pertains to a potential out of bounds write as a result of a heap buffer overflow in avrc_vendor_msg of avrc_opt.cc. This security flaw exposes systems to a possible escalation of privilege from a paired device without the need for additional execution privileges. Notably, the exploitation does not necessitate user interaction. The vulnerability is of significant concern since it could result in a system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2024-49714
Severity: High (7.8 CVSS v3)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
avrc_opt.cc | All versions prior to patch
How the Exploit Works
The exploit takes advantage of a heap buffer overflow vulnerability located in the avrc_vendor_msg of avrc_opt.cc. The attacker can overflow the heap buffer, which can lead to an out of bounds write. This condition can potentially allow an attacker to execute arbitrary code or escalate their privileges without any additional execution permissions needed.
Conceptual Example Code
The below conceptual code demonstrates a potential exploit scenario. Please note this is a conceptual representation and not a functioning exploit code.
# Exploit command
$ ./exploit_program -target avrc_vendor_msg -overflow_buffer "OverflowBufferInput"In this conceptual example, the exploit program targets the ‘avrc_vendor_msg’ and uses a specially crafted ‘OverflowBufferInput’ to overflow the heap buffer, leading to an out of bounds write, potentially causing privilege escalation or system compromise.
Mitigation Guidance
To mitigate the CVE-2024-49714 vulnerability, users are advised to apply the vendor-provided patch. In the absence of a patch, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary workaround. However, it is essential to note that these are merely temporary measures and that the most secure remediation is to apply the vendor’s patch as soon as it becomes available.
