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Insufficient URL encoding flaw in allowed script location check
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Insufficient URL encoding flaw in allowed script location check
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.
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CVSS V3 Severity and Metrics
General Information
Vendors
- canonical,
- debian,
- fedoraproject,
- libreoffice,
- opensuse
Products
- debian linux 10.0,
- debian linux 8.0,
- debian linux 9.0,
- fedora 29,
- leap 15.0,
- leap 15.1,
- libreoffice,
- ubuntu linux 16.04,
- ubuntu linux 18.04,
- ubuntu linux 19.04
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Advisory
Additional Info
Technical Analysis
Report as Exploited in the Wild
CVE ID
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