oFono 2.3 SimToolKit heap-based overflow

Summaryinfo

A vulnerability classified as critical was found in oFono 2.3. This vulnerability affects unknown code of the component SimToolKit. The manipulation results in heap-based overflow. This vulnerability is reported as CVE-2024-7545. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in oFono 2.3. Affected is an unknown function of the component SimToolKit. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

oFono SimToolKit Heap-based Buffer Overflow Privilege Escalation Vulnerability. This vulnerability allows local attackers to execute arbitrary code on affected installations of oFono. An attacker must first obtain the ability to execute code on the target modem in order to exploit this vulnerability. The specific flaw exists within the parsing of STK command PDUs. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-23458.

The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2024-7545 since 08/06/2024. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/06/2025).

The vulnerability scanner Nessus provides a plugin with the ID 230705 (Linux Distros Unpatched Vulnerability : CVE-2024-7545), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (230705). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• oFono

Version

• 2.3

CPE 2.3info

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• 🔍

CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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