Symantec Endpoint Protection up to 14.2 Log File link following

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Symantec Endpoint Protection up to 14.2. This issue affects some unknown processing of the component Log File Handler. The manipulation results in link following. This vulnerability is identified as CVE-2020-5837. The attack is only possible with local access. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Symantec Endpoint Protection up to 14.2 (Anti-Malware Software). Affected is an unknown functionality of the component Log File Handler. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Symantec Endpoint Protection, prior to 14.3, may not respect file permissions when writing to log files that are replaced by symbolic links, which can lead to a potential elevation of privilege.

The weakness was released 05/11/2020 as SYMSA1762 (Website). The advisory is shared for download at support.broadcom.com. This vulnerability is traded as CVE-2020-5837 since 01/06/2020. The attack needs to be approached locally. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available.

Upgrading to version 14.3 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-155012, VDB-155013, VDB-155014 and VDB-155015. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Symantec): 7.8
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: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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-2020-5837 (🔍)
GCVE (CVE): GCVE-0-2020-5837
GCVE (VulDB): GCVE-100-155016
See also: 🔍

Entryinfo

Created: 05/12/2020 08:07
Updated: 05/12/2020 08:12
Changes: 05/12/2020 08:07 (51), 05/12/2020 08:12 (18)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.