CVE-2019-14422

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 v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.vulnerability-lab.com/get_content.php?id=2188	Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/7	Exploit Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:tortoisesvn:tortoisesvn:1.12.1:*:*:*:*:*:*:*

Information

Published : 2019-08-15 10:15

Updated : 2020-08-24 10:37

NVD link : CVE-2019-14422

Mitre link : CVE-2019-14422

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

tortoisesvn

tortoisesvn

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