RHEL 5 : rdesktop (Unpatched Vulnerability)

critical Nessus Plugin ID 199074

Synopsis

The remote Red Hat 5 host is affected by multiple vulnerabilities that will not be patched.

Description

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

- rdesktop: Remote code execution in ui_clip_handle_data (CVE-2018-8800)

- rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function ui_clip_handle_data() that results in an information leak. (CVE-2018-20174)

- rdesktop versions up to and including v1.8.3 contains several Integer Signedness errors that lead to Out- Of-Bounds Reads in the file mcs.c and result in a Denial of Service (segfault). (CVE-2018-20175)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

Solution

The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation guidance.

Plugin Details

Severity: Critical

ID: 199074

File Name: redhat_unpatched_rdesktop-rhel5.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/3/2024

Updated: 6/3/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2018-8800

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:redhat:enterprise_linux:rdesktop, cpe:/o:redhat:enterprise_linux:5

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

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 1/29/2019

Reference Information

CVE: CVE-2018-20174, CVE-2018-20175, CVE-2018-20176, CVE-2018-20177, CVE-2018-20178, CVE-2018-20179, CVE-2018-20180, CVE-2018-20181, CVE-2018-20182, CVE-2018-8791, CVE-2018-8792, CVE-2018-8793, CVE-2018-8794, CVE-2018-8795, CVE-2018-8796, CVE-2018-8797, CVE-2018-8798, CVE-2018-8799, CVE-2018-8800

Detections

Analytics