USN-4030-1: web2py vulnerabilities

21 June 2019

Several security issues were fixed in web2py.

Releases

Packages

  • web2py - High-level Python web development framework

Details

It was discovered that web2py does not properly check denied hosts before
verifying passwords. An attacker could possibly use this issue to perform
brute-force attacks. (CVE-2016-10321)

It was discovered that web2py allows remote attackers to obtain
environment variable values. An attacker could possibly use this issue to
gain administrative access. (CVE-2016-3952)

It was discovered that web2py uses a hardcoded encryption key. An
attacker could possibly use this issue to execute arbitrary code.
(CVE-2016-3953, CVE-2016-3954, CVE-2016-3957)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04

In general, a standard system update will make all the necessary changes.