Overview
On August 13, local time, a researcher from a vulnerability laboratory (vxrl team) disclosed a remote code execution vulnerability (CVE-2019-14422) in TortoiseSVN.
The URI handler of TortoiseSVN (Tsvncmd:) allows a customized diff operation on Excel workbooks. This vulnerability could be used to open remote workbooks without protection from macro security settings to execute arbitrary code.
An attacker could exploit this by putting a macro virus in a network drive, and force the victim to open a workbook and execute the macro inside. The vulnerability could be triggered by visiting a specially crafted URL via a web browser.
Reference:
https://seclists.org/fulldisclosure/2019/Aug/7
Affected Version
- TortoiseSVN Version <= 1.12.1
Unaffected Versions
- TortoiseSVN Version == 1.12.2
Solution
Currently, the vendor has officially released the latest version V1.12.2 to fix this vulnerability. Users are advised to upgrade as soon as possible.
The update is available at the following link:
https://tortoisesvn.net/downloads.zh.html
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.
