Remote code execution vulnerabilities found in Buildroot, Foxit PDF Reader
blog.talosintelligence.com
Multiple vulnerabilities in Foxit PDF Reader
Discovered by Kamlapati Choubey.
Foxit PDF Reader contains multiple vulnerabilities that could lead to remote code execution if exploited correctly.
TALOS-2023-1837 (CVE-2023-32616) and TALOS-2023-1839 (CVE-2023-38573) can be exploited if an attacker embeds malicious JavaScript into a PDF, and the targeted user opens that PDF in Foxit. These vulnerabilities can trigger the use of a previously freed object, which can lead to memory corruption and arbitrary code execution.
TALOS-2023-1838 (CVE-2023-41257) works in the same way, but in this case, it is caused by a type confusion vulnerability.
Three other vulnerabilities could allow an attacker to create arbitrary HTA files in the context application, and eventually gain the ability to execute arbitrary code on the targeted machine. TALOS-2023-1832 (CVE-2023-39542), TALOS-2023-1833 (CVE-2023-40194) and TALOS-2023-1834 (CVE-2023-35985) are all triggered if the targeted user opens a specially crafted file in the Foxit software or browser plugin.
GPSd NTRIP Stream Parsing access violation vulnerability
Discovered by Dimitrios Tatsis.
An integer overflow vulnerability exists in the NTRIP Stream Parsing functionality of GPS daemon, which is used to collect and display GPS information in other software. A specially crafted network packet can lead to memory corruption. An attacker can send a malicious packet to trigger TALOS-2023-1860 (CVE-2023-43628).
According to GPSd’s website, this service daemon powers the map service on Android mobile devices and is “ubiquitous in drones, robot submarines, and driverless cars.”
Buildroot - embedded Linux systems builder tool
Discovered by Claudio Bozzato and Francesco Benvenuto.
Talos researchers recently found multiple data integrity vulnerabilities in Buildroot, a tool that automates builds of Linux environments for embedded systems.
An adversary could carry out a man-in-the-middle attack to exploit TALOS-2023-1845 (CVE-2023-43608) and TALOS-2023-1844 (CVE-2023-45842, CVE-2023-45839, CVE-2023-45838, CVE-2023-45840 and CVE-2023-45841) to execute arbitrary code in the builder.
As a direct consequence, an attacker could then also tamper with any file generated for Buildroot’s targets and hosts.
Malformed Excel file could lead to arbitrary code execution in WPS Office
Discovered by Marcin “Icewall” Noga.
An uninitialized pointer use vulnerability (TALOS-2023-1748/CVE-2023-31275) exists in the functionality of WPS Office, a suite of software for word and data processing, that handles Data elements in an Excel file.
A specially crafted malformed Excel file can lead to remote code execution.
WPS Office, previously known as a Kingsoft Office, is a software suite for Microsoft Windows, macOS, Linux, iOS, Android, and HarmonyOS developed by Chinese software developer Kingsoft. It is installed by default on Amazon Fire tablet devices.
Talos disclosed this vulnerability in November despite no official fix or patch from Kingsoft after the company did not respond to our notification attempts and failed the 90-day deadline as outlined in Cisco’s third-party vendor vulnerability disclosure policy.