SB2021030212 - Authorization bypass through user-controlled key in Nextcloud Deck
Published: March 2, 2021
Security Bulletin ID
SB2021030212
CSH Severity
Low
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-2020-8297)
CWE-ID: -
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to insecure direct object reference (IDOR) issue. A remote administrator with a duplicate user identifier can use deck data of a previous deleted user.
Remediation
Install update from vendor's website.