SB2022071802 - Authorization bypass through user-controlled key in Nextcloud Mail
Published: July 18, 2022
Security Bulletin ID
SB2022071802
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) Authorization bypass through user-controlled key (CVE-ID: CVE-2022-31131)
CWE-ID: CWE-639 - Authorization Bypass Through User-Controlled Key
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to missing ownership check when updating or deleting mail attachments. A remote user can cause the attachment is unavailable for the given message in the outbox.
Remediation
Install update from vendor's website.