Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2018-18688

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
07/01/2021
Last modified:
14/01/2021

Description

The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, an Incremental Saving vulnerability exists in multiple products. When an attacker uses the Incremental Saving feature to add pages or annotations, Body Updates are displayed to the user without any action by the signature-validation logic. This affects Foxit Reader before 9.4 and PhantomPDF before 8.3.9 and 9.x before 9.4. It also affects LibreOffice, Master PDF Editor, Nitro Pro, Nitro Reader, Nuance Power PDF Standard, PDF Editor 6 Pro, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, Perfect PDF 10 Premium, and Perfect PDF Reader.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:code-industry:master_pdf_editor:5.1.12:*:*:*:*:*:*:*
cpe:2.3:a:code-industry:master_pdf_editor:5.1.68:*:*:*:*:*:*:*
cpe:2.3:a:foxitsoftware:foxit_reader:9.4:*:*:*:*:*:*:*
cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* 9.0 (including) 9.4 (excluding)
cpe:2.3:a:foxitsoftware:phantompdf:8.3.9:*:*:*:*:*:*:*
cpe:2.3:a:gonitro:nitro_pro:11.0.3.173:*:*:*:*:*:*:*
cpe:2.3:a:gonitro:nitro_reader:5.5.9.2:*:*:*:*:*:*:*
cpe:2.3:a:iskysoft:pdf_editor_6:6.4.2.3521:*:*:*:professional:*:*:*
cpe:2.3:a:iskysoft:pdfelement6:6.8.0.3523:*:*:*:professional:*:*:*
cpe:2.3:a:iskysoft:pdfelement6:6.8.4.3921:*:*:*:professional:*:*:*
cpe:2.3:a:libreoffice:libreoffice:6.0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:libreoffice:libreoffice:6.1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:nuance:power_pdf_standard:3.0.0.17:*:*:*:*:*:*:*
cpe:2.3:a:nuance:power_pdf_standard:3.0.0.30:*:*:*:*:*:*:*
cpe:2.3:a:nuance:power_pdf_standard:7.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools