Detections
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EulerOS 2.0 SP8 : php (EulerOS-SA-2021-2810)

high Nessus Plugin ID 156313

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower- privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
 (CVE-2021-21703)

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

Solution

Update the affected php packages.

See Also

http://www.nessus.org/u?4ce38b82

Plugin Details

Severity: High

ID: 156313

File Name: EulerOS_SA-2021-2810.nasl

Version: 1.4

Type: local

Published: 12/26/2021

Updated: 11/22/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-21703

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/PR:L/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:huawei:euleros:php-recode, p-cpe:/a:huawei:euleros:php-soap, p-cpe:/a:huawei:euleros:php-xml, p-cpe:/a:huawei:euleros:php-xmlrpc, cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:php, p-cpe:/a:huawei:euleros:php-cli, p-cpe:/a:huawei:euleros:php-common, p-cpe:/a:huawei:euleros:php-fpm, p-cpe:/a:huawei:euleros:php-gd, p-cpe:/a:huawei:euleros:php-ldap, p-cpe:/a:huawei:euleros:php-odbc, p-cpe:/a:huawei:euleros:php-pdo, p-cpe:/a:huawei:euleros:php-process

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/25/2021

Vulnerability Publication Date: 10/25/2021

Reference Information

CVE: CVE-2021-21703

IAVA: 2021-A-0503-S