Dell SonicWall GMS Virtual Appliance 7.2 GMS ViewPoint Web Application input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Dell SonicWall GMS Virtual Appliance 7.2. Affected by this issue is some unknown functionality of the component GMS ViewPoint Web Application. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2014-8420. There is no available exploit. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability has been found in Dell SonicWall GMS Virtual Appliance 7.2 (Firewall Software) and classified as critical. This vulnerability affects an unknown function of the component GMS ViewPoint Web Application. 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. CVE summarizes:

The ViewPoint web application in Dell SonicWALL Global Management System (GMS) before 7.2 SP2, SonicWALL Analyzer before 7.2 SP2, and SonicWALL UMA before 7.2 SP2 allows remote authenticated users to execute arbitrary code via unspecified vectors.

The weakness was presented 11/21/2014 by Brandon Perry as ZDI-14-385 as confirmed advisory (ZDI). The advisory is available at zerodayinitiative.com. This vulnerability was named CVE-2014-8420 since 10/22/2014. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available. The advisory points out:

GMS, Analyzer, and UMA have remote code execution vulnerabilities. These vulnerabilities are exploitable only by the user who has access to the privileged login for the administrative/appliance interface to GMS.

The vulnerability was handled as a non-public zero-day exploit for at least 123 days. During that time the estimated underground price was around $25k-$100k.

Applying the patch Hotfix #153315 is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (98911) and SecurityFocus (BID 71241†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.9
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: Hotfix #153315

Timelineinfo

07/21/2014 🔍
10/22/2014 +93 days 🔍
11/21/2014 +30 days 🔍
11/21/2014 +0 days 🔍
11/25/2014 +4 days 🔍
11/25/2014 +0 days 🔍
07/06/2017 +954 days 🔍

Sourcesinfo

Vendor: dell.com

Advisory: ZDI-14-385
Researcher: Brandon Perry
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8420 (🔍)
GCVE (CVE): GCVE-0-2014-8420
GCVE (VulDB): GCVE-100-68278
X-Force: 98911 - Multiple Dell SonicWALL products code execution, High Risk
SecurityFocus: 71241 - Multiple Dell SonicWALL Products CVE-2014-8420 Multiple Remote Code Execution Vulnerabilities

Entryinfo

Created: 11/25/2014 09:38
Updated: 07/06/2017 08:15
Changes: 11/25/2014 09:38 (58), 07/06/2017 08:15 (6)
Complete: 🔍
Cache ID: 216:D0E:103

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