Veritas NetBackup 6.x/7.x Log File access control

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Veritas NetBackup 6.x/7.x. It has been declared as problematic. Affected by this issue is some unknown functionality of the component Log File. The manipulation results in access control. This vulnerability is reported as CVE-2017-6404. The attack requires a local approach. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Veritas NetBackup 6.x/7.x (Backup Software). Affected is some unknown processing of the component Log File. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Veritas NetBackup Before 7.7 and NetBackup Appliance Before 2.7. There are world-writable log files, allowing destruction or spoofing of log data.

The bug was discovered 03/01/2017. The weakness was disclosed 03/01/2017 by Sven Blumenstein, Xiaoran Wang and Andrew Griffiths with Google as Veritas NetBackup v6.x, v7.x, v8.0 and NetBackup appliances v2.x, v3.0 - Multiple Critical Vulnerabilities as not defined mailinglist post (Full-Disclosure). The advisory is available at seclists.org. The vendor was not involved in the coordination of the public release. This vulnerability is traded as CVE-2017-6404 since 03/01/2017. Local access is required to approach this attack. Required for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The advisory points out:

Multiple critical vulnerabilities were identified in Veritas NetBackup and NetBackup appliance. The vulnerabilities were discovered during a black box security assessment and therefore the vulnerability list should not be considered exhaustive.

The vulnerability was handled as a non-public zero-day exploit for at least 92 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104888 (Veritas NetBackup Appliance < 2.7.2 / 3.1.0 Multiple Vulnerabilities (VTS17-003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370336 (Veritas NetBackup Multiple Vulnerabilities.(VTS17-003)).

Upgrading to version 8.0 eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability. The mailinglist post contains the following remark:

The target date for patches that fix these issues is 29th September, 2017.

The vulnerability is also documented in the databases at Tenable (104888) and SecurityFocus (BID 96494†). The entries VDB-97354, VDB-97355, VDB-97356 and VDB-97357 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Veritas NetBackup Appliance 6.x/7.x
  • Veritas NetBackup Appliances 2.x

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.5

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Veritas): 3.3
Vendor Vector (Veritas): 🔍

NVD Base Score: 5.5
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104888
Nessus Name: Veritas NetBackup Appliance < 2.7.2 / 3.1.0 Multiple Vulnerabilities (VTS17-003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: NetBackup 8.0

Timelineinfo

11/29/2016 🔍
12/02/2016 +3 days 🔍
02/28/2017 +88 days 🔍
03/01/2017 +1 days 🔍
03/01/2017 +0 days 🔍
03/01/2017 +0 days 🔍
03/01/2017 +0 days 🔍
03/02/2017 +1 days 🔍
09/28/2017 +210 days 🔍
11/30/2017 +63 days 🔍
09/02/2020 +1007 days 🔍

Sourcesinfo

Advisory: Veritas NetBackup v6.x, v7.x, v8.0 and NetBackup appliances v2.x, v3.0 - Multiple Critical Vulnerabilities
Researcher: Sven Blumenstein, Xiaoran Wang, Andrew Griffiths
Organization: Google
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6404 (🔍)
GCVE (CVE): GCVE-0-2017-6404
GCVE (VulDB): GCVE-100-97362
SecurityFocus: 96494 - Veritas NetBackup and NetBackup Appliance Local Insecure File Permissions Vulnerability
OSVDB: - CVE-2017-6404 - Veritas - NetBackup - World Writable Log Files Issue

See also: 🔍

Entryinfo

Created: 03/01/2017 11:08
Updated: 09/02/2020 18:17
Changes: 03/01/2017 11:08 (93), 09/02/2020 18:17 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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