CVE-2019-14422
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 16.39% probability · 97th percentile
- CISA KEV
- Not listed
- Affected
- tortoisesvn/tortoisesvn
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2019/Aug/7Exploit, Mailing List, Third Party Advisory
- https://www.vulnerability-lab.com/get_content.php?id=2188Exploit, Third Party Advisory
- http://seclists.org/fulldisclosure/2019/Aug/7Exploit, Mailing List, Third Party Advisory
- https://www.vulnerability-lab.com/get_content.php?id=2188Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.