Unrated severityNVD Advisory· Published Mar 1, 2021· Updated Aug 3, 2024
CVE-2021-25833
CVE-2021-25833
Description
A file extension handling issue was found in [server] module of ONLYOFFICE DocumentServer v4.2.0.71-v5.6.0.21. The file extension is controlled by an attacker through the request data and leads to arbitrary file overwriting. Using this vulnerability, a remote attacker can obtain remote code execution on DocumentServer.
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Affected products
2- ONLYOFFICE/DocumentServerdescription
- Range: >=4.2.0.71, <=5.6.0.21
Patches
Vulnerability mechanics
References
4- github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.jsmitrex_refsource_MISC
- github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.jsmitrex_refsource_MISC
- github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.jsmitrex_refsource_MISC
- github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833mitrex_refsource_MISC
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