CVE-2021-25831

Description

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. An attacker must request the conversion of the crafted file from PPTT into PPTX format. Using the chain of two other bugs related to improper string handling, a remote attacker can obtain remote code execution on DocumentServer.

Weakness classification

• nvd@nist.gov: NVD-CWE-noinfo

Primary references

• cve@mitre.org — Product
• cve@mitre.org — Product, Vendor Advisory
• cve@mitre.org — Vendor Advisory
• cve@mitre.org — Vendor Advisory
• cve@mitre.org — Vendor Advisory
• cve@mitre.org — Exploit, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Product
• af854a3a-2127-422b-91ae-364da2661108 — Product, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Vendor Advisory