Vulnerability Details : CVE-2021-43445
ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. An attacker can authenticate with the web socket service of the ONLYOFFICE document editor which is protected by JWT auth by using a default JWT signing key.
Vulnerability category: BypassGain privilege
Exploit prediction scoring system (EPSS) score for CVE-2021-43445
Probability of exploitation activity in the next 30 days: 0.14%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 48 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-43445
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-43445
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When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43445
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https://www.onlyoffice.com/
ONLYOFFICE - Secure Online Office | ONLYOFFICEProduct;Vendor Advisory
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https://github.com/ONLYOFFICE/server
GitHub - ONLYOFFICE/server: The backend server software layer which is the part of ONLYOFFICE Document Server and is the base for all other componentsThird Party Advisory
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https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/
Remote Code Execution in ONLYOFFICE - Nettitude LabsMitigation;Third Party Advisory
Products affected by CVE-2021-43445
- cpe:2.3:a:onlyoffice:server:*:*:*:*:*:*:*:*