Overview
Recently, Cisco Talos published several technical analysis reports, claiming that Aspose.cells and Aspose.words in Aspose products contain remote code execution vulnerabilities, which can be exploited via a maliciously crafted file to result in remote code execution.
Vulnerability Description
Aspose.Cells Code Execution Vulnerability
CVE-2019-5032
CVSS 3.0: 9.8
The LabelSst record parser of the Aspose.Cells library is prone to an out-of-bounds read vulnerability, which can be exploited via a specially crafted XLS file to result in remote code execution. Successful exploitation of this vulnerability requires users to perform desired operations.
CVE-2019-5033
CVSS 3.0: 9.8
This vulnerability is similar to CVE-2019-5032, but stems from the Number record parser.
These vulnerabilities affect the following version:
Aspose.Cells 19.1.0
For details about these vulnerabilities, please visit the following links:
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0794
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0795
Aspose.Words Code Execution Vulnerability
CVE-2019-5041
The EnumMetaInfo function in the Aspose Aspose.Words library, version 18.11.0.0, contains an exploitable stack-based buffer overflow vulnerability. A specially crafted .doc file can cause a stack-based buffer overflow, resulting in remote code execution. An attacker needs to provide a malformed file to the victim to trigger this vulnerability.
- Affected version:
Aspose.Words 18.11.0.0
For details about this vulnerability, please visit the following link:
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0805
Solution
According to Talos’s researchers, Aspose has not responded to the preceding vulnerabilities or released patches to fix them. Affected users are advised to visit Aspose’s official websites to obtain the latest updates immediately after they are available:
https://products.aspose.cloud/cells
https://products.aspose.cloud/words
Statement
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
About NSFOCUS
NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.
NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).
A wholly owned subsidiary of NSFOCUS Information Technology Co. Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.
