Citrix Workspace App prior 1912 LTSR CU4/2105 on Windows access control

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Citrix Workspace App on Windows. It has been declared as critical. The affected element is an unknown function. The manipulation results in access control. This vulnerability was named CVE-2021-22907. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Citrix Workspace App on Windows (Connectivity Software). It has been classified as critical. Affected is some unknown processing. 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.

The weakness was presented 05/28/2021 as CTX307794. The advisory is shared for download at support.citrix.com. This vulnerability is traded as CVE-2021-22907. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1912 LTSR CU4 or 2105 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Connectivity Software

Vendor

Citrix

Name

Workspace App

License

commercial

Website

Vendor: https://www.citrix.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Workspace App 1912 LTSR CU4/2105

Timelineinfo

01/06/2021 🔍
05/28/2021 +141 days 🔍
05/28/2021 +0 days 🔍
06/03/2021 +6 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: CTX307794
Status: Confirmed

CVE: CVE-2021-22907 (🔍)
GCVE (CVE): GCVE-0-2021-22907
GCVE (VulDB): GCVE-100-176028

Entryinfo

Created: 05/28/2021 09:24
Updated: 06/03/2021 08:09
Changes: 05/28/2021 09:24 (39), 06/03/2021 08:09 (5)
Complete: 🔍
Cache ID: 216::103