SB2021072240 - Improper Authorization in OX Documents
Published: July 22, 2021
Security Bulletin ID
SB2021072240
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authorization (CVE-ID: CVE-2021-28093)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: 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
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.
Remediation
Install update from vendor's website.