USN-4030-1: web2py vulnerabilities
21 June 2019
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Several security issues were fixed in web2py.
- web2py - High-level Python web development framework
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)
The problem can be corrected by updating your system to the following package versions:
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.