Vulnerability CVE-2019-9847

Vulnerability Name:

CVE-2019-9847 (CCN-160938)

Assigned:

2019-05-08

Published:

2019-05-08

Updated:

2021-09-08

Summary:

A vulnerability in LibreOffice hyperlink processing allows an attacker to construct documents containing hyperlinks pointing to the location of an executable on the target users file system. If the hyperlink is activated by the victim the executable target is unconditionally launched. Under Windows and macOS when processing a hyperlink target explicitly activated by the user there was no judgment made on whether the target was an executable file, so such executable targets were launched unconditionally. This issue affects: All LibreOffice Windows and macOS versions prior to 6.1.6; LibreOffice Windows and macOS versions in the 6.2 series prior to 6.2.3.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-20

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2019-9847

Source: XF
Type: UNKNOWN
libreoffice-cve20199847-code-exec(160938)

Source: CCN
Type: LibreOffice Web site
CVE-2019-9847 Executable hyperlink targets executed unconditionally on activation

Source: CONFIRM
Type: Vendor Advisory
https://www.libreoffice.org/about-us/security/advisories/cve-2019-9847/

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-9847

Vulnerable Configuration:

Configuration 1:

cpe:/a:libreoffice:libreoffice:*:*:*:*:*:*:*:* (Version < 6.1.6)

OR cpe:/a:libreoffice:libreoffice:*:*:*:*:*:*:*:* (Version >= 6.2 and < 6.2.3)

AND

cpe:/o:microsoft:windows:-:*:*:*:*:*:*:*

OR cpe:/o:apple:macos:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.cosmic:def:201998470000000	V	CVE-2019-9847 on Ubuntu 18.10 (cosmic) - low.	2019-05-09
oval:com.ubuntu.bionic:def:201998470000000	V	CVE-2019-9847 on Ubuntu 18.04 LTS (bionic) - low.	2019-05-09
oval:com.ubuntu.xenial:def:201998470000000	V	CVE-2019-9847 on Ubuntu 16.04 LTS (xenial) - low.	2019-05-09
oval:com.ubuntu.disco:def:201998470000000	V	CVE-2019-9847 on Ubuntu 19.04 (disco) - low.	2019-05-09

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