SB2019121815 - Arbitrary account hijacking in Django
Published: December 18, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2019-19844)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to hijack another user account.
The vulnerability exists due to insufficient validation of user-supplied input when processing email addresses passed via the password reset form. A remote attacker with knowledge of a valid email address can use a specially crafted email that after Unicode transformation will be treated as the victim's email address and reset password for the victim's account to the attacker provided email address.
Remediation
Install update from vendor's website.