VDB-178761 · CVE-2020-11634 · GCVE-0-2020-11634

Zscaler Client Connector prior 2.1.2.105 on Windows OpenSSL Configuration uncontrolled search path

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.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Zscaler Client Connector on Windows. Affected by this vulnerability is an unknown functionality of the component OpenSSL Configuration Handler. Performing a manipulation results in uncontrolled search path. This vulnerability is identified as CVE-2020-11634. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Zscaler Client Connector on Windows. This affects some unknown functionality of the component OpenSSL Configuration Handler. The manipulation with an unknown input leads to a uncontrolled search path vulnerability. CWE is classifying the issue as CWE-427. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 07/16/2021. The advisory is shared at help.zscaler.com. This vulnerability is uniquely identified as CVE-2020-11634. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1574 for this issue.

Upgrading to version 2.1.2.105 eliminates this vulnerability. The upgrade is hosted for download at help.zscaler.com.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Zscaler

Name

Client Connector

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Class: Uncontrolled search path
CWE: CWE-427 / CWE-426
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: Client Connector 2.1.2.105

Timelineinfo

04/08/2020 🔍
07/16/2021 +464 days 🔍
07/16/2021 +0 days 🔍
07/19/2021 +3 days 🔍

Sourcesinfo

Advisory: help.zscaler.com
Status: Confirmed

CVE: CVE-2020-11634 (🔍)
GCVE (CVE): GCVE-0-2020-11634
GCVE (VulDB): GCVE-100-178761

Entryinfo

Created: 07/16/2021 09:36
Updated: 07/19/2021 11:31
Changes: 07/16/2021 09:36 (39), 07/19/2021 11:31 (2)
Complete: 🔍
Cache ID: 216::103