Symantec Endpoint Protection up to 12.1 RU6 MP9/14.2 access control

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Symantec Endpoint Protection up to 12.1 RU6 MP9/14.2. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2019-12750. The attack can only be executed locally. Furthermore, there is an exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Symantec Endpoint Protection up to 12.1 RU6 MP9/14.2 (Anti-Malware Software). It has been declared as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Symantec Endpoint Protection, prior to 14.2 RU1 & 12.1 RU6 MP10 and Symantec Endpoint Protection Small Business Edition, prior to 12.1 RU6 MP10c (12.1.7491.7002), may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user.

The weakness was shared 07/31/2019 by Kyriakos Economou (kyREcon) with Nettitude as SYMSA1487 as confirmed security advisory (Website). The advisory is shared for download at support.symantec.com. The vendor cooperated in the coordination of the public release. This vulnerability was named CVE-2019-12750 since 06/06/2019. The attack needs to be approached locally. The successful exploitation needs a single authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068. The advisory points out:

Symantec Endpoint Protection and Symantec Endpoint Protection Small Business Edition may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user.

A public exploit has been developed by Kyriakos Economou and been published 5 months after the advisory. It is possible to download the exploit at labs.nettitude.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Upgrading to version 12.1 RU10 or 14.2 RU1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. The security advisory contains the following remark:

The mentioned issue was validated by the product team engineers. A Symantec Endpoint Protection update, version 14.2 RU1, and Symantec Endpoint Protection Small Business Edition update, version 12.1 RU6 MP10c (12.1.7491.7002), have been released which address the aforementioned issue. The latest releases and patches for Symantec Endpoint Protection and Symantec Endpoint Protection Small Business Edition are available to customers through normal support channels. At this time, Symantec is not aware of any exploitations or adverse customer impact from these issues.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 109107†). Once again VulDB remains the best source for vulnerability data.

Affected

  • Symantec Endpoint Protection up to 12.1 RU6 MP9/14.2
  • Symantec Endpoint Protection Small Business Edition up to 12.1 RU6

Productinfo

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Website

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Symantec): 7.8
Vendor Vector (Symantec): 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍
Access: Public
Status: Proof-of-Concept
Author: Kyriakos Economou
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Endpoint Protection 12.1 RU10/14.2 RU1
Workaround: Application and Device Control

Timelineinfo

06/06/2019 🔍
07/31/2019 +55 days 🔍
08/01/2019 +1 days 🔍
12/12/2019 +133 days 🔍
12/14/2019 +2 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: SYMSA1487
Researcher: Kyriakos Economou (kyREcon)
Organization: Nettitude
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-12750 (🔍)
GCVE (CVE): GCVE-0-2019-12750
GCVE (VulDB): GCVE-100-139084
SecurityFocus: 109107

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/01/2019 09:37
Updated: 12/14/2019 18:55
Changes: 08/01/2019 09:37 (59), 12/14/2019 18:54 (6), 12/14/2019 18:55 (20)
Complete: 🔍
Committer: misc
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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