Symantec Endpoint Protection up to 12.1 RU6 MP8 File System access control

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Symantec Endpoint Protection up to 12.1 RU6 MP8. This affects an unknown part of the component File System Handler. Performing a manipulation results in access control. This vulnerability is known as CVE-2017-13681. Attacking locally is a requirement. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, was found in Symantec Endpoint Protection up to 12.1 RU6 MP8 (Anti-Malware Software). This affects an unknown code of the component File System Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Symantec Endpoint Protection prior to SEP 12.1 RU6 MP9 could be susceptible to a privilege escalation vulnerability, which is a type of issue that allows a user to gain elevated access to resources that are normally protected at lower access levels. In the circumstances of this issue, the capability of exploit is limited by the need to perform multiple file and directory writes to the local filesystem and as such, is not feasible in a standard drive-by type attack.

The bug was discovered 11/06/2017. The weakness was published 11/06/2017 by Matthieu Buffet with ANSSI as SYM17-011 as confirmed security advisory (Website). It is possible to read the advisory at symantec.com. The public release has been coordinated with Symantec. This vulnerability is uniquely identified as CVE-2017-13681 since 08/24/2017. Attacking locally is a requirement. A authentication is needed for exploitation. 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. The advisory points out:

The Symantec Endpoint Protection Windows endpoint could be susceptible to a privilege escalation vulnerability, which is a type of issue that allows a user to gain elevated access to resources that are normally protected at lower access levels. In the circumstances of this issue, the capability of exploit is limited by the need to perform multiple file and directory writes to the local filesystem and as such, is not feasible in a standard drive-by type attack.

The vulnerability scanner Nessus provides a plugin with the ID 104459 (Symantec Endpoint Protection Client 12.1.x < 12.1 RU6 MP9 / 14.0.x < 14.0 RU1 Multiple Vulnerabilities (SYM17-011)), 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 370647 (Symantec Endpoint Protection Multiple Security Vulnerabilities (SYM17-011)).

Applying the patch 12.1 RU6 MP9 is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104459) and SecurityFocus (BID 101504†). Similar entries are available at VDB-109154 and VDB-109175. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.3

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

Vendor Base Score (Symantec): 8.8
Vendor Vector (Symantec): 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104459
Nessus Name: Symantec Endpoint Protection Client 12.1.x < 12.1 RU6 MP9 / 14.0.x < 14.0 RU1 Multiple Vulnerabilities (SYM17-011)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 804245
OpenVAS Name: Symantec Endpoint Protection Privilege Escalation Vulnerability (SYM17-011)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 12.1 RU6 MP9

Timelineinfo

08/24/2017 🔍
10/20/2017 +57 days 🔍
11/06/2017 +17 days 🔍
11/06/2017 +0 days 🔍
11/06/2017 +0 days 🔍
11/06/2017 +0 days 🔍
11/07/2017 +1 days 🔍
11/08/2017 +1 days 🔍
01/23/2021 +1172 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: SYM17-011
Researcher: Matthieu Buffet
Organization: ANSSI
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2017-13681 (🔍)
GCVE (CVE): GCVE-0-2017-13681
GCVE (VulDB): GCVE-100-109155
SecurityFocus: 101504 - Symantec Endpoint Protection Manager CVE-2017-13681 Local Privilege Escalation Vulnerability
SecurityTracker: 1039775

See also: 🔍

Entryinfo

Created: 11/07/2017 08:02
Updated: 01/23/2021 08:38
Changes: 11/07/2017 08:02 (93), 12/04/2019 16:32 (2), 01/23/2021 08:38 (2)
Complete: 🔍
Cache ID: 216::103

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