FreeBSD : py-matrix-synapse -- XSS vulnerability (5f39d80f-107c-11eb-8b47-641c67a117d8)

medium Nessus Plugin ID 141517

Language:

New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Matrix developers reports :

The fallback authentication endpoint served via Synapse were vulnerable to cross-site scripting (XSS) attacks. The impact depends on the configuration of the domain that Synapse is deployed on, but may allow access to cookies and other browser data, CSRF vulnerabilities, and access to other resources served on the same domain or parent domains.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?1d00dabe

https://github.com/matrix-org/synapse/releases/tag/v1.21.2

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249948

http://www.nessus.org/u?7eda80c4

Plugin Details

Severity: Medium

ID: 141517

File Name: freebsd_pkg_5f39d80f107c11eb8b47641c67a117d8.nasl

Version: 1.3

Type: local

Published: 10/19/2020

Updated: 10/29/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:py36-matrix-synapse, p-cpe:/a:freebsd:freebsd:py37-matrix-synapse, p-cpe:/a:freebsd:freebsd:py38-matrix-synapse, p-cpe:/a:freebsd:freebsd:py39-matrix-synapse, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 10/17/2020

Vulnerability Publication Date: 10/1/2020

Reference Information

CVE: CVE-2020-26891