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F5 Networks BIG-IP : BIG-IP Edge Client for Windows vulnerability (K15478554)

high Nessus Plugin ID 143112

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The BIG-IP Edge Client Windows Installer Service's temporary folder has weak file and folder permissions, and allows execution of signed .exe and MSI files. (CVE-2020-5896)

Impact

This vulnerability can be exploited to allow an unprivileged user to gain privilege escalation on the client Windows system.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K15478554.

See Also

https://my.f5.com/manage/s/article/K15478554

Plugin Details

Severity: High

ID: 143112

File Name: f5_bigip_SOL15478554.nasl

Version: 1.10

Type: local

Published: 11/19/2020

Updated: 5/10/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-5896

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/11/2020

Vulnerability Publication Date: 5/12/2020

Reference Information

CVE: CVE-2020-5896

IAVA: 2020-A-0573-S