Oracle Linux 7 : krb5 (ELSA-2015-2154)

high Nessus Plugin ID 87026

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-2154 advisory.

- the rebase to krb5 1.13.1 in vers 1.13.1-0 also fixed:
- Bug 1144498 ('Fix the race condition in the libkrb5 replay cache')
- Bug 1163402 ('kdb5_ldap_util view_policy does not shows ticket flags on s390x and ppc64')
- Bug 1185770 ('Missing upstream test in krb5-1.12.2: src/tests/gssapi/t_invalid.c')
- Bug 1204211 ('CVE-2014-5355 krb5: unauthenticated denial of service in recvauth_common() and other')
- fix for CVE-2015-2694 (#1218020) 'requires_preauth bypass in PKINIT-enabled KDC'.
In MIT krb5 1.12 and later, when the KDC is configured with PKINIT support, an unauthenticated remote attacker can bypass the requires_preauth flag on a client principal and obtain a ciphertext encrypted in the principal's long-term key. This ciphertext could be used to conduct an off-line dictionary attack against the user's password.

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 87026

File Name: oraclelinux_ELSA-2015-2154.nasl

Version: 1.15

Type: local

Agent: unix

Family: Oracle Linux Local Security Checks

Published: 11/24/2015

Updated: 11/1/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2015-2694

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS Score Source: CVE-2014-5355

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:krb5-pkinit, p-cpe:/a:oracle:linux:krb5-server-ldap, p-cpe:/a:oracle:linux:krb5-workstation, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:krb5-server, p-cpe:/a:oracle:linux:krb5-devel, p-cpe:/a:oracle:linux:krb5-libs

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2015

Vulnerability Publication Date: 2/20/2015

Reference Information

CVE: CVE-2014-5355, CVE-2015-2694

RHSA: 2015:2154

Detections

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