Symantec Endpoint Protection up to 12.1 RU6/MP9/14 RU1 race condition

CVSS Meta Temp Score
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5.8$0-$5k0.00

A vulnerability was found in Symantec Endpoint Protection up to 12.1 RU6/MP9/14 RU1 (Anti-Malware Software). It has been rated as critical. This issue affects an unknown function. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is availability. The summary by CVE is:

Symantec Endpoint Protection prior to 14 RU1 MP1 or 12.1 RU6 MP10 may be susceptible to a race condition (or race hazard). This type of issue occurs in software where the output is dependent on the sequence or timing of other uncontrollable events.

The bug was discovered 06/20/2018. The weakness was published 06/20/2018 as SYMSA1454 as confirmed security advisory (Website). It is possible to read the advisory at support.symantec.com. The identification of this vulnerability is CVE-2018-5236 since 01/05/2018. Attacking locally is a requirement. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Symantec Endpoint Protection may be susceptible to a race condition (or race hazard). This type of issue occurs in software where the output is dependent on the sequence or timing of other uncontrollable events. When this kind of bug exists in some code paths, a security vulnerability can occur.

The vulnerability scanner Nessus provides a plugin with the ID 110778 (Symantec Endpoint Protection Client 12.1.x < 12.1 RU6 MP10 / 14.0.x < 14.0 RU1 MP1 Multiple Vulnerabilities (SYMSA1454)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371019 (Symantec Endpoint Protection Multiple Security Vulnerabilities (SYMSA1454)).

Applying the patch 12.1 RU6 MP10/14 RU1 MP1 is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (110778). Similar entry is available at 119736.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
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Vendor Base Score (Symantec): 6.5
Vendor Vector (Symantec): 🔍

NVD Base Score: 5.3
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CVSSv2info

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Exploitinginfo

Class: Race condition
CWE: CWE-362
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Nessus ID: 110778
Nessus Name: Symantec Endpoint Protection Client 12.1.x < 12.1 RU6 MP10 / 14.0.x < 14.0 RU1 MP1 Multiple Vulnerabilities (SYMSA1454)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: 12.1 RU6 MP10/14 RU1 MP1

Timelineinfo

01/05/2018 🔍
06/20/2018 +165 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/20/2018 +0 days 🔍
06/26/2018 +6 days 🔍
06/28/2018 +2 days 🔍
02/22/2020 +604 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: SYMSA1454
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5236 (🔍)
SecurityTracker: 1041180
SecurityFocus: 104198 - Symantec Endpoint Protection CVE-2018-5236 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/20/2018 22:53
Updated: 02/22/2020 21:44
Changes: 06/20/2018 22:53 (89), 02/22/2020 21:44 (2)
Complete: 🔍

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