GLSA-201801-11 : PySAML2: Security bypass

high Nessus Plugin ID 105755

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201801-11 (PySAML2: Security bypass)

It was found that the PySAML2 relies on an assert statement to check the user’s password. A python optimizations might remove this assertion.
Impact :

A remote attacker could bypass security restrictions and access any application which is using PySAML2 for authentication.
Workaround :

Disable python optimizations.

Solution

All PySAML2 4.0 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-python/pysaml2-4.0.2-r3' All PySAML2 4.5 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-python/pysaml2-4.5.0'

See Also

https://security.gentoo.org/glsa/201801-11

Plugin Details

Severity: High

ID: 105755

File Name: gentoo_GLSA-201801-11.nasl

Version: Revision: 3.3

Type: local

Published: 1/12/2018

Updated: 1/26/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

CVSS v3

Risk Factor: High

Base Score: 8.1

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:pysaml2, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 1/11/2018

Reference Information

CVE: CVE-2017-1000433

GLSA: 201801-11