RHEL 7 : pki-core (RHSA-2017:2335)

high Nessus Plugin ID 102117

Synopsis

The remote Red Hat host is missing a security update for pki-core.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2017:2335 advisory.

Red Hat Certificate System is an enterprise software system designed to manage enterprise public key infrastructure (PKI) deployments. PKI Core contains fundamental packages required by Red Hat Certificate System, which comprise the Certificate Authority (CA) subsystem.

Security Fix(es):

* It was found that a mock CMC authentication plugin with a hardcoded secret was accidentally enabled by default in the pki-core package. An attacker could potentially use this flaw to bypass the regular authentication process and trick the CA server into issuing certificates. (CVE-2017-7537)

This issue was discovered by Christina Fu (Red Hat).

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 pki-core package based on the guidance in RHSA-2017:2335.

See Also

http://www.nessus.org/u?2e3b1385

https://access.redhat.com/errata/RHSA-2017:2335

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=1469432

https://bugzilla.redhat.com/show_bug.cgi?id=1470817

Plugin Details

Severity: High

ID: 102117

File Name: redhat-RHSA-2017-2335.nasl

Version: 3.15

Type: local

Agent: unix

Published: 8/2/2017

Updated: 11/5/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2017-7537

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:pki-server, p-cpe:/a:redhat:enterprise_linux:pki-tools, p-cpe:/a:redhat:enterprise_linux:pki-base, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:pki-javadoc, p-cpe:/a:redhat:enterprise_linux:pki-symkey, p-cpe:/a:redhat:enterprise_linux:pki-kra, p-cpe:/a:redhat:enterprise_linux:pki-core, p-cpe:/a:redhat:enterprise_linux:pki-ca, p-cpe:/a:redhat:enterprise_linux:pki-base-java

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/1/2017

Vulnerability Publication Date: 7/26/2018

Reference Information

CVE: CVE-2017-7537

CWE: 287

RHSA: 2017:2335