VDB-112292 · CVE-2018-5761 · GCVE-0-2018-5761

Rubrik CDM up to 3.x/4.0.4-p1 vCenter certificate validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Rubrik CDM up to 3.x/4.0.4-p1. This issue affects some unknown processing of the component vCenter. Such manipulation leads to certificate validation. This vulnerability is uniquely identified as CVE-2018-5761. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Rubrik CDM up to 3.x/4.0.4-p1. It has been rated as critical. Affected by this issue is an unknown code block of the component vCenter. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A man-in-the-middle vulnerability related to vCenter access was found in Rubrik CDM 3.x and 4.x before 4.0.4-p2. This vulnerability might expose Rubrik user credentials configured to access vCenter as Rubrik clusters did not verify TLS certificates presented by vCenter.

The bug was discovered 01/17/2018. The weakness was disclosed 01/22/2018 (GitHub Repository). The advisory is shared for download at gist.github.com. This vulnerability is handled as CVE-2018-5761 since 01/17/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.0.4-p2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Rubrik

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CDM 4.0.4-p2

Timelineinfo

01/17/2018 🔍
01/17/2018 +0 days 🔍
01/22/2018 +5 days 🔍
01/22/2018 +0 days 🔍
01/23/2018 +1 days 🔍
12/26/2019 +702 days 🔍

Sourcesinfo

Advisory: gist.github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5761 (🔍)
GCVE (CVE): GCVE-0-2018-5761
GCVE (VulDB): GCVE-100-112292

Entryinfo

Created: 01/23/2018 08:01
Updated: 12/26/2019 15:58
Changes: 01/23/2018 08:01 (59), 12/26/2019 15:58 (2)
Complete: 🔍
Cache ID: 216::103