PT-2016-4407 · Python+5 · Python+5
Published
2016-06-22
·
Updated
2024-06-15
·
CVE-2016-0772
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Python versions prior to 2.7.12
Python 3.x versions prior to 3.4.5
Python 3.5.x versions prior to 3.5.2
Description
The issue allows man-in-the-middle attackers to bypass TLS protections by blocking the StartTLS command, also known as a "StartTLS stripping attack." This occurs because the smtplib library in Python does not return an error when StartTLS fails.
Recommendations
For Python versions prior to 2.7.12, update to version 2.7.12 or later.
For Python 3.x versions prior to 3.4.5, update to version 3.4.5 or later.
For Python 3.5.x versions prior to 3.5.2, update to version 3.5.2 or later.
Exploit
Fix
Protection Mechanism Failure
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Python
Red Hat
Suse
Ubuntu