Palo Alto PAN-OS up to 6.1.17/7.0.15/7.1.10/8.0.2 DNS Proxy input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Palo Alto PAN-OS up to 6.1.17/7.0.15/7.1.10/8.0.2. This issue affects some unknown processing of the component DNS Proxy. This manipulation causes input validation. This vulnerability appears as CVE-2017-8390. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Palo Alto PAN-OS up to 6.1.17/7.0.15/7.1.10/8.0.2 (Firewall Software). Affected by this vulnerability is some unknown processing of the component DNS Proxy. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The DNS Proxy in Palo Alto Networks PAN-OS before 6.1.18, 7.x before 7.0.16, 7.1.x before 7.1.11, and 8.x before 8.0.3 allows remote attackers to execute arbitrary code via a crafted domain name.

The bug was discovered 07/20/2017. The weakness was presented 07/20/2017 as confirmed advisory (Website). It is possible to read the advisory at securityadvisories.paloaltonetworks.com. This vulnerability is known as CVE-2017-8390 since 05/01/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 101164 (Palo Alto Networks PAN-OS 6.1.x < 6.1.18 / 7.0.x < 7.0.17 / 7.1.x < 7.1.12 / 8.0.x < 8.0.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Palo Alto Local Security Checks and running in the context c.

Upgrading to version 6.1.18, 7.0.16, 7.1.11 or 8.0.3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101164), SecurityFocus (BID 99911†) and SecurityTracker (ID 1038976†). See VDB-104381, VDB-104382, VDB-106113 and VDB-106114 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101164
Nessus Name: Palo Alto Networks PAN-OS 6.1.x < 6.1.18 / 7.0.x < 7.0.17 / 7.1.x < 7.1.12 / 8.0.x < 8.0.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103238
OpenVAS Name: Palo Alto PAN-OS DNS-Proxy RCE Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PAN-OS 6.1.18/7.0.16/7.1.11/8.0.3

Timelineinfo

05/01/2017 🔍
06/19/2017 +49 days 🔍
06/30/2017 +11 days 🔍
07/20/2017 +20 days 🔍
07/20/2017 +0 days 🔍
07/20/2017 +0 days 🔍
07/21/2017 +1 days 🔍
07/22/2017 +1 days 🔍
08/02/2017 +11 days 🔍
10/31/2019 +820 days 🔍

Sourcesinfo

Vendor: paloaltonetworks.com

Advisory: securityadvisories.paloaltonetworks.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8390 (🔍)
GCVE (CVE): GCVE-0-2017-8390
GCVE (VulDB): GCVE-100-104383
SecurityFocus: 99911 - Palo Alto DNS Proxy CVE-2017-8390 Arbitrary Code Execution Vulnerability
SecurityTracker: 1038976

See also: 🔍

Entryinfo

Created: 07/22/2017 10:07
Updated: 10/31/2019 13:20
Changes: 07/22/2017 10:07 (76), 10/31/2019 13:20 (6)
Complete: 🔍
Cache ID: 216::103

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