SB2021120203 - Insufficient Session Expiration in Zulip
Published: December 2, 2021
Security Bulletin ID
SB2021120203
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) Insufficient Session Expiration (CVE-ID: CVE-2021-43791)
CWE-ID: CWE-613 - Insufficient Session Expiration
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient session expiration issue. A remote non-authenticated attacker can use expired invitations, self-registrations, or realm creation links.
Remediation
Install update from vendor's website.