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CVE-2020-12801— Crash-recovered MSOffice encrypted documents defaulted to not to using encryption on next save

Quick assessment

Affected
The Document Foundation LibreOffice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibreOffice是文档基金会（The Document Foundation，TDF）的一套开源的办公软件套件。该产品包含Writer（文本文档）、Calc（电子表格）和Impress（演示文稿）等应用程序。 LibreOffice 6.3.6之前的6.3.x版本和6.4.3之前的6.4.x版本中存在安全漏洞。攻击者可利用该漏洞获取信息。

AI Predicted 6.5 Difficulty: Easy EPSS 1.29% · P69

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2020-12801

Vulnerability Information
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Vulnerability Title
Crash-recovered MSOffice encrypted documents defaulted to not to using encryption on next save
Source: CVE Program / CVE List V5
Vulnerability Description
If LibreOffice has an encrypted document open and crashes, that document is auto-saved encrypted. On restart, LibreOffice offers to restore the document and prompts for the password to decrypt it. If the recovery is successful, and if the file format of the recovered document was not LibreOffice's default ODF file format, then affected versions of LibreOffice default that subsequent saves of the document are unencrypted. This may lead to a user accidentally saving a MSOffice file format document unencrypted while believing it to be encrypted. This issue affects: LibreOffice 6-3 series versions prior to 6.3.6; 6-4 series versions prior to 6.4.3.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据加密缺失
Source: CVE Program / CVE List V5
Vulnerability Title
LibreOffice 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreOffice是文档基金会（The Document Foundation，TDF）的一套开源的办公软件套件。该产品包含Writer（文本文档）、Calc（电子表格）和Impress（演示文稿）等应用程序。 LibreOffice 6.3.6之前的6.3.x版本和6.4.3之前的6.4.x版本中存在安全漏洞。攻击者可利用该漏洞获取信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Document Foundation LibreOffice 6-3 series ~ 6.3.6 -

II. Public POCs for CVE-2020-12801

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III. Intelligence Information for CVE-2020-12801

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Mailing List Discussions for CVE-2020-12801 (2)

Other References for CVE-2020-12801 (1)

IV. Related Vulnerabilities

Same product: LibreOffice
Same vendor: The Document Foundation
Same weakness: CWE-311

V. Comments for CVE-2020-12801

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