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Ubuntu 14.04 LTS / 16.04 LTS : Heimdal vulnerability (USN-3353-1)

high Nessus Plugin ID 101769

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3353-1 advisory.

 Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered that Heimdal clients incorrectly trusted unauthenticated portions of Kerberos tickets. A remote attacker could use this to impersonate trusted network services or perform other attacks.

Tenable has extracted the preceding description block directly from the Ubuntu 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 affected packages.

See Also

https://ubuntu.com/security/notices/USN-3353-1

Plugin Details

Severity: High

ID: 101769

File Name: ubuntu_USN-3353-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 7/17/2017

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2017-11103

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/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: p-cpe:/a:canonical:ubuntu_linux:heimdal-servers-x, p-cpe:/a:canonical:ubuntu_linux:heimdal-kcm, p-cpe:/a:canonical:ubuntu_linux:heimdal-dev, p-cpe:/a:canonical:ubuntu_linux:libgssapi3-heimdal, p-cpe:/a:canonical:ubuntu_linux:libhdb9-heimdal, p-cpe:/a:canonical:ubuntu_linux:libkadm5srv8-heimdal, p-cpe:/a:canonical:ubuntu_linux:libhcrypto4-heimdal, p-cpe:/a:canonical:ubuntu_linux:libotp0-heimdal, p-cpe:/a:canonical:ubuntu_linux:libkadm5clnt7-heimdal, p-cpe:/a:canonical:ubuntu_linux:heimdal-servers, p-cpe:/a:canonical:ubuntu_linux:heimdal-multidev, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libasn1-8-heimdal, p-cpe:/a:canonical:ubuntu_linux:libwind0-heimdal, p-cpe:/a:canonical:ubuntu_linux:heimdal-clients, p-cpe:/a:canonical:ubuntu_linux:libheimbase1-heimdal, p-cpe:/a:canonical:ubuntu_linux:libhx509-5-heimdal, p-cpe:/a:canonical:ubuntu_linux:libroken18-heimdal, p-cpe:/a:canonical:ubuntu_linux:libkrb5-26-heimdal, p-cpe:/a:canonical:ubuntu_linux:libsl0-heimdal, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libkafs0-heimdal, p-cpe:/a:canonical:ubuntu_linux:libkdc2-heimdal, p-cpe:/a:canonical:ubuntu_linux:libheimntlm0-heimdal, p-cpe:/a:canonical:ubuntu_linux:heimdal-kdc, p-cpe:/a:canonical:ubuntu_linux:heimdal-clients-x

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2017

Vulnerability Publication Date: 7/13/2017

Reference Information

CVE: CVE-2017-11103

USN: 3353-1