An issue was discovered in in TortoiseSVN 1.12.1. The Tsvncmd: URI handler allows a customised diff operation on Excel workbooks, which could be used to open remote workbooks without protection from macro security settings to execute arbitrary code. A tsvncmd:command:diff?path:[file1]?path2:[file2] URI will execute a customised diff on [file1] and [file2] based on the file extension. For xls files, it will execute the script diff-xls.js using wscript, which will open the two files for analysis without any macro security warning. An attacker can exploit this by putting a macro virus in a network drive, and force the victim to open the workbooks and execute the macro inside.
References
Link Resource
http://seclists.org/fulldisclosure/2019/Aug/7 Exploit Mailing List Third Party Advisory
https://www.vulnerability-lab.com/get_content.php?id=2188 Exploit Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2019-08-15T16:02:12

Updated: 2019-08-15T16:02:12

Reserved: 2019-07-29T00:00:00


Link: CVE-2019-14422

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-08-15T17:15:13.473

Modified: 2020-08-24T17:37:01.140


Link: CVE-2019-14422

JSON object: View

cve-icon Redhat Information

No data.