CVE-2021-25636 Vulnerability Details

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CVE-2021-25636 Metadata Quick Info

CVE Published: 22/02/2022 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: Document Fdn. | Vendor: The Document Foundation | Product: LibreOffice
Status : PUBLISHED

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CVE-2021-25636 Description

LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to contain both "X509Data" and "KeyValue" children of the "KeyInfo" tag, which when opened caused LibreOffice to verify using the "KeyValue" but to report verification with the unrelated "X509Data" value. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.5.

Metrics

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

l➤ Exploitability Metrics:
    Attack Vector (AV)*
    Attack Complexity (AC)*
    Privileges Required (PR)*
    User Interaction (UI)*
    Scope (S)*

l➤ Impact Metrics:
    Confidentiality Impact (C)*
    Integrity Impact (I)*
    Availability Impact (A)*

Weakness Enumeration (CWE)

CWE-ID: CWE-347
CWE Name: CWE-347 Improper Verification of Cryptographic Signature
Source: The Document Foundation

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).