Palo Alto Networks PAN-OS 6.1.x <= 6.1.20 / 7.1.x < 7.1.21 / 8.0.x < 8.0.14 / 8.1.x < 8.1.4 Multiple Vulnerabilities (PAN-SA-2018-0015)

Medium Nessus Plugin ID 123512

Synopsis

The remote host is affected by multiple vulnerabilities.

Description

The version of Palo Alto Networks PAN-OS running on the remote host is 6.1.x including 6.1.20 or 7.1.x prior to 7.1.21 or 8.0.x prior to 8.0.14 or 8.1.x prior to 8.1.4. It is, therefore, affected by multiple vulnerabilities :

- A denial of service (DoS) vulnerability that exists in OpenSSL due to failure of handling the exception conditions during the TLS handshake. An authenticated, remote attacker can exploit this issue , via malicious server to send large prime value to the client to spend unreasonably long time for generating the key for this prime resulting hang until the client finished. (CVE-2018-0732)

- An information disclosure vulnerability that exists in OpenSSL RSA key generation algorithm due to a cache timing side channel attack. An authenticated, local attacker can exploit this issue, via cache timing attacks during the RSA key generation process, to recover the private key. (CVE-2018-0737)

- A denial of service (DoS) vulnerability that exists in OpenSSL due to a constructed ASN.1 types with a recursive definition. An unauthenticated, remote attacker can exploit this issue, via creating malicious input with excessive recursion, to cause the Denial Of Service attack. (CVE-2018-0739)

Solution

Upgrade to Palo Alto Networks PAN-OS version 7.1.21 / 8.0.14 / 8.1.4 or later.

See Also

http://www.nessus.org/u?dc854806

Plugin Details

Severity: Medium

ID: 123512

File Name: palo_alto_PAN-SA-2018-0015.nasl

Version: 1.1

Type: combined

Published: 2019/03/29

Updated: 2019/03/29

Dependencies: 72816

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2018-0732

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/o:paloaltonetworks:pan-os

Required KB Items: Host/Palo_Alto/Firewall/Full_Version

Patch Publication Date: 2018/11/20

Vulnerability Publication Date: 2018/11/20

Reference Information

CVE: CVE-2018-0732, CVE-2018-0737, CVE-2018-0739

BID: 104442, 103766, 103518