Intel VirusScan Enterprise Linux up to 2.0.3 Update NailsConfig.html signature verification

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Intel VirusScan Enterprise Linux up to 2.0.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the file NailsConfig.html of the component Update Handler. This manipulation causes signature verification. This vulnerability appears as CVE-2016-8021. The attack may be initiated remotely. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Intel VirusScan Enterprise Linux up to 2.0.3 (Anti-Malware Software) and classified as critical. Affected by this vulnerability is an unknown part of the file NailsConfig.html of the component Update Handler. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Improper verification of cryptographic signature vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote authenticated users to spoof update server and execute arbitrary code via a crafted input file.

The bug was discovered 12/09/2016. The weakness was presented 03/14/2017 by Andrew Fasano as EDB-ID 40911 as confirmed exploit (Exploit-DB). The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2016-8021 since 09/09/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed by Andrew Fasano and been published before and not just after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. By approaching the search of inurl:NailsConfig.html it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 95812 (McAfee VirusScan Enterprise for Linux <= 2.0.3 Multiple vulnerabilities (SB10181)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11740 (McAfee Virus Scan Enterprise Multiple Security Vulnerabilities).

Upgrading 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 Exploit-DB (40911), Tenable (95812), SecurityFocus (BID 94823†) and SecurityTracker (ID 1037433†). See VDB-97928, VDB-97929, VDB-97930 and VDB-97931 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 7.4
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Andrew Fasano
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95812
Nessus Name: McAfee VirusScan Enterprise for Linux <= 2.0.3 Multiple vulnerabilities (SB10181)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800619
OpenVAS Name: McAfee VirusScan Enterprise for Linux Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/09/2016 🔍
12/09/2016 +91 days 🔍
12/09/2016 +0 days 🔍
12/12/2016 +3 days 🔍
12/13/2016 +1 days 🔍
12/13/2016 +0 days 🔍
12/14/2016 +1 days 🔍
03/14/2017 +90 days 🔍
03/14/2017 +0 days 🔍
03/15/2017 +1 days 🔍
12/05/2024 +2822 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: EDB-ID 40911
Researcher: Andrew Fasano
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-8021 (🔍)
GCVE (CVE): GCVE-0-2016-8021
GCVE (VulDB): GCVE-100-97933
SecurityFocus: 94823 - McAfee VirusScan Enterprise Multiple Security Vulnerabilities
OSVDB: - CVE-2016-8021 - Intel Security - VirusScan Enterprise Linux - Spoofing Issue
SecurityTracker: 1037433

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/15/2017 08:01
Updated: 12/05/2024 23:46
Changes: 03/15/2017 08:01 (86), 09/06/2020 17:43 (6), 12/03/2024 08:13 (16), 12/05/2024 23:46 (1)
Complete: 🔍
Cache ID: 216::103

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