Timing attack in Django - CVE-2016-2513
Published: December 21, 2016 / Updated: May 16, 2018
Vulnerability identifier: #VU1605
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-2513
CWE-ID: CWE-208
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Django Software Foundation
Affected software:
Django
Django
Detailed vulnerability description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The weakness exists in the password hasher in contrib/auth/hashers.py due to creating a timing difference between a login request for a user with a password encoded in an older number of iterations and login request for a nonexistent user. A remote attacker can enumerate users via a timing attack involving login requests.
The weakness exists in the password hasher in contrib/auth/hashers.py due to creating a timing difference between a login request for a user with a password encoded in an older number of iterations and login request for a nonexistent user. A remote attacker can enumerate users via a timing attack involving login requests.
How to mitigate CVE-2016-2513
Update to version 1.8.10 or 1.9.3.