Photon OS 3.0: Httpd PHSA-2021-3.0-0257

high Nessus Plugin ID 153184
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 PhotonOS host is missing multiple security updates.

Description

An update of the httpd package has been released.

- Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow (CVE-2020-35452)

- Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured. (CVE-2019-17567)

- Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service (CVE-2020-13950)

- Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF' (CVE-2021-30641)

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

Solution

Update the affected Linux packages.

See Also

https://github.com/vmware/photon/wiki/Security-Updates-3.0-257.md

Plugin Details

Severity: High

ID: 153184

File Name: PhotonOS_PHSA-2021-3_0-0257_httpd.nasl

Version: 1.5

Type: local

Published: 9/9/2021

Updated: 9/24/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-35452

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:vmware:photonos:httpd, cpe:/o:vmware:photonos:3.0

Required KB Items: Host/local_checks_enabled, Host/PhotonOS/release, Host/PhotonOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2021

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2019-17567, CVE-2020-13950, CVE-2020-35452, CVE-2021-30641

IAVA: 2021-A-0259-S