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-2019-9852, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed by employing a URL encoding attack to defeat the path verification step. However this protection could be bypassed by taking advantage of a flaw in how LibreOffice assembled the final script URL location directly from components of the passed in path as opposed to solely from the sanitized output of the path verification step. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.
References
Link | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00055.html | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1769907 | Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html | Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQKKOIY2DMZCXJINOLIQXD2NWISDKK3N/ | |
https://seclists.org/bugtraq/2019/Sep/17 | Mailing List Third Party Advisory |
https://usn.ubuntu.com/4138-1/ | Third Party Advisory |
https://www.debian.org/security/2019/dsa-4519 | Third Party Advisory |
https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9854/ | Vendor Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
No history.
Information
Published : 2019-09-06 19:15
Updated : 2024-02-04 20:20
NVD link : CVE-2019-9854
Mitre link : CVE-2019-9854
CVE.ORG link : CVE-2019-9854
JSON object : View
Products Affected
libreoffice
- libreoffice
debian
- debian_linux
canonical
- ubuntu_linux
opensuse
- leap
redhat
- enterprise_linux
fedoraproject
- fedora
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')