Foxit PDF Reader is affected by a high-severity remote code execution flaws

On this Monday not less than eighteen vulnerabilities were discovered by cybersecurity researchers. All the discovered flaws are rated to be high in severity. They are all affecting the Foxit PDF Reader’s JavaScript engine – a component which executes JavaScript code.
From this eighteen vulnerabilities, seven can be used by hackers to perform remote code execution in JavaScript engine.

The rich feature PDF reader, Foxit, supports JavaScript for interactive documents and dynamic forms when a hacker executes embedded JavaScript code, a document can be closed, but the JavaScript can continue to run, potentially leading to malicious code execution.
Remember everything can be hacked. In order to stay away from any threats related to the cyber world, we recommend the install of antivirus for Windows or antivirus for Mac on every device that you own, depending on which OS your device is running. If you are a company, it is also recommended to hire every year a specialized cybersecurity company that will run annual tests on your company’s network. These tests include penetration testing and ethical hacking tests;

Another flaw (CVE-2018-3964) leverages the invocation of the ‘getPageNumWords’ method of the active document with a crafted object as an argument. This flaw alone and another six separate use-after-free CVEs present in the JavaScript engine of Foxit PDF Reader can be abused by a malicious actor to execute arbitrary code.
For example, a specially crafted PDF document sent to a victim can hijack a previously freed object in memory to be reused, resulting in arbitrary code execution.

Any user of Foxit should update to Reader 9.3 and Foxit PhantomPDF 9.3 to fix the flaws.
Foxit Software has patched over 100 vulnerabilities in its popular Foxit PDF Reader.
Impacted are Foxit Reader and Foxit PhantomPDF versions 9.2.0.9297 and earlier for Windows.

Foxit’s flaws are not the only ones, Adobe also released patches for its own set of services- Adobe Acrobat and Reader.

This Monday Adobe released up to 47 patches that fix critical vulnerabilities, including 22 out-of-bounds write flaws, 7 critical heap overflow glitches, 7 use-after-free bugs, 3 type confusion bugs, 3 buffer error bugs, 3 untrusted pointers dereference flaws and 2 free vulnerability.
We would continue to monitor this cybersecurity problem. Meanwhile, users should keep a keen eye out for any cyber attacks. Remember to use an antivirus for Windows or antivirus for Mac in every device that you own, depending on which OS your machine is running, If you are a company we recommend to hire every year a specialized cybersecurity company that will run annual tests on your company’s network, tests like this include: penetration testing and ethical hacking.

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