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CVE-2016-0772

CVE information

Published

7 years ago

Last Modified

5 years ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

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Description

The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack.".

CVSSv2.0 Score

Severity
Medium
Base Score
5.8/10
Exploit Score
8.6/10
Access Vector
Network
Access Complexity
Medium
Authentication Required
None
Impact Score
4.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Medium
Base Score
6.5/10
Exploit Score
2.2/10
Access Vector
Network
Access Complexity
High
Privileges Required
None
Impact Score
4.2/10
Confidentiality Impact
Low
Availability Impact
None
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:python:python:3.5.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.5.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
  Yes
- -

References