VulnerabilityModified
CVE-2020-11536
An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.
CRITICAL 9.8EPSS 2.59%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit the unzip function to rewrite a binary and remotely execute code on a victim's server.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.59% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- onlyoffice/document server
- Source
- cve@mitre.org
References
- https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0Third Party Advisory
- https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551Release Notes, Third Party Advisory
- https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0Third Party Advisory
- https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551Release Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.