Improper Authorization in OX Documents - CVE-2021-28093
Published: July 22, 2021
Vulnerability identifier: #VU55249
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-28093
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OX Software GmbH
Affected software:
OX Documents
OX Documents
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to the affeczed cache uses a weak mechanisms (Adler32) to create cache keys. A remote authenticated attacker can swap image content by hash key colissions.
How to mitigate CVE-2021-28093
Install updates from vendor's website.