USN-4030-1: web2py vulnerabilities
web2py vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary
Several security issues were fixed in web2py.
Software Description
- 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 LTS
- python-gluon – 2.12.3-1ubuntu0.1
- python-web2py – 2.12.3-1ubuntu0.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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