Improper Authorization in OX Documents



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-28093
CWE-ID CWE-285
Exploitation vector Network
Public exploit N/A
Vulnerable software
 OX Documents
Client/Desktop applications / Other client software

Vendor OX Software GmbH

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Authorization

EUVDB-ID: #VU55249

Risk: Medium

CVSSv4.0: 2.3 [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 - Improper Authorization

Exploit availability: No

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OX Documents: All versions

CPE2.3 External links

https://seclists.org/fulldisclosure/2021/Jul/37


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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