CVE-2022-3140: Macro URL arbitrary script execution

Published Oct 11, 2022
·
Updated

CVE-2022-3140 - LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint server. An additional scheme 'vnd.libreoffice.command' specific to LibreOffice was added.

In the affected versions of LibreOffice links using that scheme could be constructed to call internal macros with arbitrary arguments. Which when clicked on, or activated by document events, could result in arbitrary script execution without warning.

Fixed in: LibreOffice 7.3.6/7.4.1 In versions >= 7.3.6 (and >= 7.4.1) such unwanted command URIs are blocked from execution.

Reference: https://www.libreoffice.org/about-us/security/advisories/CVE-2022-3140

Other sources

LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint server. An additional scheme 'vnd.libreoffice.command' specific to LibreOffice was added. In the affected versions of LibreOffice links using that scheme could be constructed to call internal macros with arbitrary arguments. Which when clicked on, or activated by document events, could result in arbitrary script execution without warning. This issue affects: The Document Foundation LibreOffice 7.4 versions prior to 7.4.1; 7.3 versions prior to 7.3.6.

— MITRE

Affected Software

20 affected componentsFixes available
LibreOffice Libreoffice>=7.3.0<7.3.6
LibreOffice Libreoffice=7.4.0
Debian Debian Linux=11.0
Fedoraproject Fedora=35
alpine/libreoffice>=7.3.0<7.2.7.2-r0
7.2.7.2-r0
alpine/libreoffice>=7.3.0<7.2.7.2-r2
7.2.7.2-r2
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
alpine/libreoffice>=7.3.0<7.3.6.2-r0
7.3.6.2-r0
debian/libreoffice<1:7.4.1~rc2-3
1:7.4.1~rc2-3
debian/libreoffice<1:7.4.1~rc2-3
1:7.4.1~rc2-3
debian/libreoffice<1:7.4.1~rc2-3
1:7.4.1~rc2-3
redhat/libreoffice<7.3.6
7.3.6
redhat/libreoffice<7.4.1
7.4.1
debian/libreoffice
4:7.4.7-1+deb12u144:7.4.7-1+deb12u134:25.2.3-2+deb13u64:25.2.3-2+deb13u94:26.8.2.2-2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade alpine/libreoffice to a version that resolves this vulnerability.

    Fixed in 7.2.7.2-r0
  2. Upgrade

    Upgrade alpine/libreoffice to a version that resolves this vulnerability.

    Fixed in 7.2.7.2-r2
  3. Upgrade

    Upgrade alpine/libreoffice to a version that resolves this vulnerability.

    Fixed in 7.3.6.2-r0
  4. Upgrade

    Upgrade debian/libreoffice to a version that resolves this vulnerability.

    Fixed in 1:7.4.1~rc2-3
  5. Upgrade

    Upgrade redhat/LibreOffice to a version that resolves this vulnerability.

    Fixed in 7.3.6
  6. Upgrade

    Upgrade redhat/LibreOffice to a version that resolves this vulnerability.

    Fixed in 7.4.1
  7. Upgrade

    Upgrade debian/libreoffice to a version that resolves this vulnerability.

    Fixed in 4:7.4.7-1+deb12u14Fixed in 4:7.4.7-1+deb12u13Fixed in 4:25.2.3-2+deb13u6Fixed in 4:25.2.3-2+deb13u9Fixed in 4:26.8.2.2-2
  8. Upgrade

    Upgrade LibreOffice 7.3 to a version that resolves this vulnerability.

    Fixed in 7.3.6
  9. Upgrade

    Upgrade LibreOffice 7.4 to a version that resolves this vulnerability.

    Fixed in 7.4.1

Event History

Oct 11, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·09:15 PM
DescriptionSeverityAffected Software
Oct 14, 2022
Data Sourced
via Red Hat·05:00 AM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2022-3140?

CVE-2022-3140 is a vulnerability in LibreOffice that allows for the construction of links using the 'vnd.libreoffice.command' scheme to call internal macros.

2

How does LibreOffice's Office URI Schemes vulnerability affect browser integration with MS SharePoint server?

The vulnerability in LibreOffice's Office URI Schemes allows for browser integration with MS SharePoint server, but specifically enables the construction of malicious links to call internal macros.

3

What versions of LibreOffice are affected by CVE-2022-3140?

Versions of LibreOffice from 7.3.0 to 7.3.6, as well as version 7.4.0, are affected by CVE-2022-3140.

4

What can an attacker do with the 'vnd.libreoffice.command' scheme in the LibreOffice vulnerability?

An attacker can use the 'vnd.libreoffice.command' scheme to construct links that call internal macros, potentially executing arbitrary commands on a victim's system.

5

How can I mitigate the vulnerability in LibreOffice's Office URI Schemes?

To mitigate the vulnerability, update your LibreOffice installation to a version that is not affected by CVE-2022-3140.

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