Executive Summary

Informations
Name CVE-2016-3957 First vendor Publication 2018-02-06
Vendor Cve Last vendor Modification 2019-06-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to deserialize session information stored in cookies, which might allow remote attackers to execute arbitrary code by leveraging knowledge of encryption_key.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3957

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-502 Deserialization of Untrusted Data

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 152

Sources (Detail)

Source Url
MISC https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3...
https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200
UBUNTU https://usn.ubuntu.com/4030-1/

Alert History

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Date Informations
2021-05-04 12:49:43
  • Multiple Updates
2021-04-22 02:01:03
  • Multiple Updates
2020-05-23 01:59:33
  • Multiple Updates
2020-05-23 00:50:53
  • Multiple Updates
2019-06-22 05:19:13
  • Multiple Updates
2019-06-19 12:07:40
  • Multiple Updates
2018-02-25 05:18:46
  • Multiple Updates
2018-02-06 21:20:32
  • First insertion