Vulnerability Spotlight: Code execution vulnerability in Nitro Pro PDF
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2021-21798 | An exploitable return of stack variable address vulnerability exists in the JavaScript implementation of Nitro Pro PDF. An exploitable return of stack variable address vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a stack variable to go out of scope, resulting in the application dereferencing a stale pointer. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger the vulnerability. NVD description · AI analysis pending | 7.8 | 16% | PoC |
| — |
Full article228 words · extracted from blog.talosintelligence.com · click to collapse
Monday, September 13, 2021 10:12
A Cisco Talos team member discovered these vulnerabilities.
Cisco Talos recently discovered a vulnerability in the Nitro Pro PDF reader that could allow an attacker to execute code in the context of the application.
Nitro Pro PDF is part of Nitro Software’s Productivity Suite. Pro PDF allows users to create and modify PDFs and other digital documents. It includes support for several capabilities via third-party libraries to parse the PDFs.
TALOS-2021-1267 (CVE-2021-21798) is a use-after-free vulnerability that can be triggered if a target opens a specially crafted, malicious PDF. Cisco Talos worked with Nitro to ensure that these issues are resolved and an update is available for affected customers, all in adherence to Cisco’s vulnerability disclosure policy.
Users are encouraged to update these affected products as soon as possible: Nitro Pro versions 13.31.0.605 and 13.33.2.645. Talos tested and confirmed these versions of the PDF reader could be exploited by this vulnerability. In addition to applying the patches, these vulnerabilities can also be mitigated if users disable the use of JavaScript in the software’s settings.
The following SNORTⓇ rules will detect exploitation attempts against this vulnerability: 57296 and 57297. Additional rules may be released in the future and current rules are subject to change, pending additional vulnerability information. For the most current rule information, please refer to your Firepower Management Center or Snort.org.
Text extracted automatically; images, tables and formatting may be missing. Original: https://blog.talosintelligence.com/nitro-pro-code-execution/