CVE-2020-11535

An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.
aka Blind XPath Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 76%
VendorProductVersion
onlyofficedocument_server
5.5.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0
https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551
https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0
https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551