CVE-2019-9852
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.8% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.8% · EPSS, next 30 days
- Weakness
- CWE-116
- Record status
- Modified
Affected
- Canonical Ubuntu Linux 16.04
- Canonical Ubuntu Linux 18.04
- Canonical Ubuntu Linux 19.04
- Debian Linux 8.0
- Debian Linux 9.0
- Debian Linux 10.0
- Fedoraproject Fedora 29
- Opensuse Leap 15.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-9852.md and follow it. Check whether this project is affected by CVE-2019-9852. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9852
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9852
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PMEGUWMWORC3DOVEHVXLFT3A5RSCMLBH/
- https://seclists.org/bugtraq/2019/Aug/28
- https://seclists.org/bugtraq/2019/Sep/17
- https://usn.ubuntu.com/4102-1/
- https://www.debian.org/security/2019/dsa-4501
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9852
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PMEGUWMWORC3DOVEHVXLFT3A5RSCMLBH/
- https://seclists.org/bugtraq/2019/Aug/28
- https://seclists.org/bugtraq/2019/Sep/17
- https://usn.ubuntu.com/4102-1/
- https://www.debian.org/security/2019/dsa-4501
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9852