CVE-2020-10223 : Security Advisory and Response
Discover the Nitro Pro vulnerability in npdf.dll before 13.13.2.242, allowing heap corruption via crafted PDFs. Learn the impact, technical details, and mitigation steps.
npdf.dll in Nitro Pro before 13.13.2.242 is vulnerable to JBIG2Decode CNxJBIG2DecodeStream Heap Corruption at npdf!CAPPDAnnotHandlerUtils::create_popup_for_markup+0x12fbe via a crafted PDF document.
Understanding CVE-2020-10223
This CVE identifies a vulnerability in Nitro Pro that could allow an attacker to execute arbitrary code by exploiting a heap corruption issue in the JBIG2Decode CNxJBIG2DecodeStream.
What is CVE-2020-10223?
The CVE-2020-10223 vulnerability in Nitro Pro exposes a security flaw that could be exploited through a specially crafted PDF file, potentially leading to arbitrary code execution.
The Impact of CVE-2020-10223
The vulnerability could result in a security breach where an attacker could gain unauthorized access to the affected system, compromise data integrity, and potentially execute malicious code.
Technical Details of CVE-2020-10223
Nitro Pro's npdf.dll is susceptible to a specific type of heap corruption that can be triggered by manipulating the JBIG2Decode CNxJBIG2DecodeStream. Here are the technical details:
Vulnerability Description
The vulnerability lies in the npdf.dll component of Nitro Pro, occurring before version 13.13.2.242. It stems from improper handling of the JBIG2Decode CNxJBIG2DecodeStream, allowing an attacker to corrupt the heap.
Affected Systems and Versions
- Product: Nitro Pro
- Versions Affected: Before 13.13.2.242
Exploitation Mechanism
By crafting a malicious PDF document, an attacker can exploit the vulnerability in npdf.dll to trigger the heap corruption, potentially leading to arbitrary code execution.
Mitigation and Prevention
To address CVE-2020-10223 and enhance system security, consider the following mitigation strategies:
Immediate Steps to Take
- Update Nitro Pro to version 13.13.2.242 or later to patch the vulnerability.
- Exercise caution when opening PDF files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and applications to ensure the latest security patches are in place.
- Implement network segmentation and access controls to limit the impact of potential security breaches.
Patching and Updates
- Stay informed about security advisories related to Nitro Pro and promptly apply recommended patches to mitigate known vulnerabilities.