Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : wpa vulnerabilities (USN-3455-1) (KRACK)

high Nessus Plugin ID 103863

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Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Mathy Vanhoef discovered that wpa_supplicant and hostapd incorrectly handled WPA2. A remote attacker could use this issue with key reinstallation attacks to obtain sensitive information.
(CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088)

Imre Rad discovered that wpa_supplicant and hostapd incorrectly handled invalid characters in passphrase parameters. A remote attacker could use this issue to cause a denial of service. (CVE-2016-4476)

Imre Rad discovered that wpa_supplicant and hostapd incorrectly handled invalid characters in passphrase parameters. A local attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2016-4477).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected hostapd and / or wpasupplicant packages.

See Also

https://usn.ubuntu.com/3455-1/

Plugin Details

Severity: High

ID: 103863

File Name: ubuntu_USN-3455-1.nasl

Version: 3.20

Type: local

Agent: unix

Published: 10/17/2017

Updated: 1/12/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:hostapd, p-cpe:/a:canonical:ubuntu_linux:wpasupplicant, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/16/2017

Vulnerability Publication Date: 5/9/2016

Reference Information

CVE: CVE-2016-4476, CVE-2016-4477, CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088

USN: 3455-1

IAVA: 2017-A-0310