Debian DLA-2630-1 : wordpress security update

medium Nessus Plugin ID 148927
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Debian host is missing a security update.

Description

CVE-2021-29447

Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack.

CVE-2021-29450

Wordpress is an open source CMS. One of the blocks in the WordPress editor can be exploited in a way that exposes password-protected posts and pages. This requires at least contributor privileges.

For Debian 9 stretch, these problems have been fixed in version 4.7.20+dfsg-1+deb9u1.

We recommend that you upgrade your wordpress packages.

For the detailed security status of wordpress please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/wordpress

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html

https://packages.debian.org/source/stretch/wordpress

https://security-tracker.debian.org/tracker/source-package/wordpress

Plugin Details

Severity: Medium

ID: 148927

File Name: debian_DLA-2630.nasl

Version: 1.7

Type: local

Agent: unix

Published: 4/22/2021

Updated: 9/20/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-29450

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

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

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

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:wordpress, p-cpe:/a:debian:debian_linux:wordpress-l10n, p-cpe:/a:debian:debian_linux:wordpress-theme-twentyfifteen, p-cpe:/a:debian:debian_linux:wordpress-theme-twentyseventeen, p-cpe:/a:debian:debian_linux:wordpress-theme-twentysixteen, cpe:/o:debian:debian_linux:9.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/21/2021

Vulnerability Publication Date: 4/15/2021

Reference Information

CVE: CVE-2021-29447, CVE-2021-29450

IAVA: 2021-A-0182-S