PT-2023-4141 · Onlyoffice · Onlyoffice Community Server

Published 2023-06-19 · Updated 2023-06-28 · CVE-2023-34939

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Onlyoffice Community Server versions prior to 12.5.2

Description The issue is related to a remote code execution vulnerability in the UploadProgress.ashx component. It is associated with errors in handling the relative path to a directory with limited access. Exploitation of this issue can allow a remote attacker to execute arbitrary code.

Recommendations For versions prior to 12.5.2, update to version 12.5.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the UploadProgress.ashx component until a patch is applied.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

BDU:2023-04451

CVE-2023-34939

Affected Products

Onlyoffice Community Server

References · 6

• 🔥 https://github.com/firsov/onlyoffice · Exploit
• 🔥 https://github.com/firsov/onlyoffice/blob/main/CVE-2023-34939-PoC.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-34939 · Security Note
• https://osv.dev/vulnerability/CVE-2023-34939 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-04451 · Security Note
• https://github.com/ONLYOFFICE/CommunityServer/blob/master/CHANGELOG.md#version-1252 · Note