CVE-2019-9848

libreoffice: LibreLogo script can be manipulated into executing arbitrary python commands

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-over, etc. LibreOffice is typically also bundled with LibreLogo, a programmable turtle vector graphics script, which can be manipulated into executing arbitrary python commands. By using the document event feature to trigger LibreLogo to execute python contained within a document a malicious document could be constructed which would execute arbitrary python commands silently without warning. In the fixed versions, LibreLogo cannot be called from a document event handler. This issue affects: Document Foundation LibreOffice versions prior to 6.2.5.

LibreOffice presenta una funcionalidad donde los documentos pueden especificar que los scripts preinstalados pueden ser ejecutados en varios eventos de documentos, tal como el mouse-over, etc. Por lo general, LibreOffice también se incluye con LibreLogo, un script de gráficos vectoriales turtle programables, que puede ser manipulado para ejecutar comandos de python arbitrarios. Mediante el uso de la funcionalidad document event para activar LibreLogo para ejecutar python contenido en un documento, podría ser construido un documento malicioso que ejecutaría comandos de python arbitrarios en silencio sin avisar. En las versiones corregidas, LibreLogo no puede ser llamado desde un controlador de eventos de documento. Este problema afecta: las versiones de LibreOffice anteriores a 6.2.5, de Document Foundation.

*Credits: Thanks to Nils Emmerich of ERNW Research GmbH for discovering and reporting this issue

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-03-17 CVE Reserved
2019-07-17 CVE Published
2024-07-09 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-94: Improper Control of Generation of Code ('Code Injection')

CAPEC

References (12)

URL	Tag	Source
http://www.securityfocus.com/bid/109374	Broken Link
https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html	Mailing List
https://seclists.org/bugtraq/2019/Aug/28	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00006.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PMEGUWMWORC3DOVEHVXLFT3A5RSCMLBH	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XPTZJCNN52VNGSVC5DFKVW3EDMRDWKMP	2023-11-07
https://security.gentoo.org/glsa/201908-13	2023-11-07
https://usn.ubuntu.com/4063-1	2023-11-07
https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9848	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-9848	2020-03-31
https://bugzilla.redhat.com/show_bug.cgi?id=1737427	2020-03-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libreoffice Search vendor "Libreoffice"		Libreoffice Search vendor "Libreoffice" for product "Libreoffice"				< 6.2.5 Search vendor "Libreoffice" for product "Libreoffice" and version " < 6.2.5"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				29 Search vendor "Fedoraproject" for product "Fedora" and version "29"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				30 Search vendor "Fedoraproject" for product "Fedora" and version "30"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.0 Search vendor "Opensuse" for product "Leap" and version "15.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected