Detections
Analytics
RHEL 8 : telnet (RHSA-2020:1318)
critical Nessus Plugin ID 135257
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Synopsis
The remote Red Hat host is missing a security update for telnet.Description
The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:1318 advisory.Telnet is a popular protocol for logging in to remote systems over the Internet. The telnet-server packages include a telnet service that supports remote logins into the host machine. The telnet service is disabled by default.
Security Fix(es):
* telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
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 RHEL telnet package based on the guidance in RHSA-2020:1318.See Also
http://www.nessus.org/u?92592b44
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: Critical
ID: 135257
File Name: redhat-RHSA-2020-1318.nasl
Version: 1.11
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/7/2020
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-10188
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
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:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:rhel_eus:8.1, p-cpe:/a:redhat:enterprise_linux:telnet-server, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:telnet
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/6/2020
Vulnerability Publication Date: 3/6/2020
Reference Information
CVE: CVE-2020-10188