Ubuntu 16.04 LTS : web2py vulnerabilities (USN-4030-1)

critical Nessus Plugin ID 126174

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4030-1 advisory.

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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected python-gluon and / or python-web2py packages.

See Also

https://ubuntu.com/security/notices/USN-4030-1

Plugin Details

Severity: Critical

ID: 126174

File Name: ubuntu_USN-4030-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 6/24/2019

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2016-3957

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python-gluon, p-cpe:/a:canonical:ubuntu_linux:python-web2py, cpe:/o:canonical:ubuntu_linux:16.04:-:lts

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/21/2019

Vulnerability Publication Date: 4/10/2017

Reference Information

CVE: CVE-2016-10321, CVE-2016-3952, CVE-2016-3953, CVE-2016-3954, CVE-2016-3957

USN: 4030-1