CVE-2018-6871

LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the…

published February 9, 2018

CVSS
—
EPSS
23%
Percentile
97.7
In the wild
Unconfirmed
What it is

⚠️ A remote attacker could peek into your files with a sneaky =WEBSERVICE call! This vulnerability in LibreOffice before version 5.4.5 and 6.x before 6.0.1 is more than just a party trick — it's a potential data breach! Think of this like an unmonitored hotel room service where anyone outside can order food by simply calling with the room number. If the hotel staff doesn’t check who’s calling, they might deliver a feast of sensitive documents instead! An attacker could exploit this flaw to read arbitrary files on your system, including sensitive data, by crafting a cleverly designed document. This could lead to serious data exposure if your documents contain confidential or personal information. It's like leaving your front door unlocked and inviting strangers to snoop around!

Put simply

Think of this like an unmonitored hotel room service where anyone outside can order food by simply calling with the room number. If the hotel staff doesn’t check who’s calling, they might deliver a feast of sensitive documents instead! This vulnerability allows attackers to use the COM.MICROSOFT.WEBSERVICE function in LibreOffice to execute a =WEBSERVICE call, enabling them to read files without proper authentication or authorization. This means that if a user opens a malicious document, their files could be compromised.

What to do

An attacker could exploit this flaw to read arbitrary files on your system, including sensitive data, by crafting a cleverly designed document. This could lead to serious data exposure if your documents contain confidential or personal information. It's like leaving your front door unlocked and inviting strangers to snoop around! Upgrade LibreOffice to version 5.4.5 or 6.0.1 or later to close this security hole. Additionally, consider disabling the =WEBSERVICE function in documents to further protect against potential exploitation until you can patch. Stay proactive! You've got this! Follow these steps to safeguard your files and keep your digital space secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.22803 · 97.7th percentile
Published
2018-02-09T06:00Z
EPSS history
Timeline
  • 09 FEB 06:00Z
    LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the…
    cvelistv5