Veritas NetBackup 6.x/7.x/8.0 bpdbm access control

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Veritas NetBackup 6.x/7.x/8.0. The affected element is an unknown function of the component bpdbm. The manipulation results in access control. This vulnerability is identified as CVE-2017-6402. The attack can be executed remotely. Additionally, an exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Veritas NetBackup 6.x/7.x/8.0 (Backup Software). Affected is an unknown function of the component bpdbm. 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 availability. CVE summarizes:

An issue was discovered in Veritas NetBackup 8.0 and earlier and NetBackup Appliance 3.0 and earlier. Denial of service affecting NetBackup server can occur.

The bug was discovered 03/01/2017. The weakness was released 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 shared for download at seclists.org. The public release happened without coordination with the vendor. This vulnerability is traded as CVE-2017-6402 since 03/01/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068. 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.

A public exploit has been developed by Sven Blumenstein/Xiaoran Wang/Andrew Griffiths and been published immediately after the advisory. The exploit is shared for download at seclists.org. It is declared as proof-of-concept. 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)). The code used by the exploit is:

echo -ne "1041669 99\n" | nc 10.0.0.1 13721

Upgrading 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 96485†). Entries connected to this vulnerability are available at VDB-97354, VDB-97355, VDB-97357 and VDB-97358. Once again VulDB remains the best source for vulnerability data.

Affected

  • Veritas NetBackup Appliance 6.x/7.x/8.0
  • Veritas NetBackup Appliances 2.x/3.0

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Veritas): 6.5
Vendor Vector (Veritas): 🔍

NVD Base Score: 6.5
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: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Sven Blumenstein/Xiaoran Wang/Andrew Griffiths
Download: 🔍

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: 🔍
Exploit Delay Time: 🔍

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 🔍
03/01/2017 +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-2017-6402 (🔍)
GCVE (CVE): GCVE-0-2017-6402
GCVE (VulDB): GCVE-100-97356
SecurityFocus: 96485 - Veritas NetBackup Server and Client/ NetBackup Appliance Denial-of-Service Vulnerability
OSVDB: - CVE-2017-6402 - Veritas - NetBackup - Denial of Service Issue

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

Entryinfo

Created: 03/01/2017 11:08
Updated: 09/02/2020 17:59
Changes: 03/01/2017 11:08 (97), 09/02/2020 17:59 (8)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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