Improper Authorization in OX Documents



Published: 2021-07-22
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-28095
CWE ID CWE-285
Exploitation vector Network
Public exploit N/A
Vulnerable software
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OX Documents
Client/Desktop applications / Other client software

Vendor

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Improper Authorization

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-28095

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 documents are cached for faster processing when requesting the same resource again. A remote authenticated attacker can swap document content by hash key colissions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OX Documents: before 7.10.3-rev10, 7.10.4-rev8, 7.10.5-rev5

CPE 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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