VulnerabilityModified
CVE-2021-43447
An authentication bypass in the document editor allows attackers to edit documents without authentication.
HIGH 7.5EPSS 1.25%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. An authentication bypass in the document editor allows attackers to edit documents without authentication.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.25% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- onlyoffice/server
- Source
- cve@mitre.org
References
- https://github.com/ONLYOFFICE/serverThird Party Advisory
- https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/Exploit, Mitigation, Third Party Advisory
- https://www.onlyoffice.com/Product, Vendor Advisory
- https://github.com/ONLYOFFICE/serverThird Party Advisory
- https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/Exploit, Mitigation, Third Party Advisory
- https://www.onlyoffice.com/Product, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.