Symantec Endpoint Protection up to 14.2 ACL privileges management

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Symantec Endpoint Protection up to 14.2. It has been rated as critical. This vulnerability affects unknown code of the component ACL Handler. The manipulation leads to privileges management. This vulnerability is referenced as CVE-2020-5836. The attack can only be performed from a local environment. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Symantec Endpoint Protection up to 14.2 (Anti-Malware Software). It has been rated as critical. This issue affects an unknown function of the component ACL Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Symantec Endpoint Protection, prior to 14.3, can potentially reset the ACLs on a file as a limited user while Symantec Endpoint Protection's Tamper Protection feature is disabled.

The weakness was published 05/11/2020 as SYMSA1762 (Website). It is possible to read the advisory at support.broadcom.com. The identification of this vulnerability is CVE-2020-5836 since 01/06/2020. The exploitation is known to be difficult. Attacking locally is a requirement. The successful exploitation requires a simple authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 14.3 eliminates this vulnerability.

Similar entries are available at VDB-155012, VDB-155013, VDB-155014 and VDB-155016. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Anti-Malware Software

Vendor

Symantec

Name

Endpoint Protection

Version

License

commercial

Website

Vendor: https://www.symantec.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Symantec): 6.7
Vendor Vector (Symantec): 🔍

NVD Base Score: 7.8
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: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: Endpoint Protection 14.3

Timelineinfo

01/06/2020 🔍
05/11/2020 +126 days 🔍
05/12/2020 +1 days 🔍
05/12/2020 +0 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: SYMSA1762
Status: Confirmed

CVE: CVE-2020-5836 (🔍)
GCVE (CVE): GCVE-0-2020-5836
GCVE (VulDB): GCVE-100-155015
See also: 🔍

Entryinfo

Created: 05/12/2020 08:06
Updated: 05/12/2020 08:11
Changes: 05/12/2020 08:06 (51), 05/12/2020 08:11 (18)
Complete: 🔍
Cache ID: 216::103