Symantec Endpoint Protection Multiple Issues

1505

17 April 2020

03 March 2020

CLOSED

High

7.8

Summary

Symantec has released updates to address issues that were discovered in the Symantec Endpoint Protection (SEP), Symantec Endpoint Protection Manager (SEPM), and Symantec Endpoint Protection Small Business Edition (SEP SBE) products. At this time, Symantec is not aware of any exploitations or adverse customer impact from these issues.

Symantec has also created additional detections and protections, which are in place, and is continuing to monitor any attempts of this exploit against our products. At this time, there is no evidence of any attempts at this exploit in the wild.

 

Affected Product(s)

 

Symantec Endpoint Protection (SEP)

& Symantec Endpoint Protection Small Business Edition (SEP SBE)

CVE

Affected Version(s)

Remediation

CVE-2020-5820

CVE-2020-5821

CVE-2020-5822

CVE-2020-5823

CVE-2020-5824

CVE-2020-5825

CVE-2020-5826

Prior to 14.2 RU2 MP1 (14.2.5569.2100)

Upgrade to 14.2 RU2 MP1 (14.2.5569.2100)

 

 

Symantec Endpoint Protection Manager (SEPM)

CVE

Affected Version(s)

Remediation

CVE-2020-5827

CVE-2020-5828

CVE-2020-5829

CVE-2020-5830

CVE-2020-5831

Prior to 14.2 RU2 MP1

Upgrade to 14.2 RU2 MP1

 

Issue Details

 

CVE-2020-5820

Severity/CVSSv3:

High / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

Impact:

Security Focus: BID 111773  / NVD: CVE-2020-5820

Privilege Escalation

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, 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.

 

 

CVE-2020-5821   

Severity/CVSSv3:

High / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

Impact:

Security Focus: BID 111771  / NVD: CVE-2020-5821

DLL Injection

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a DLL injection vulnerability, which is a type of issue whereby an individual attempts to execute their own code in place of legitimate code as a means to perform an exploit.

 

 

CVE-2020-5822   

Severity/CVSSv3:

High / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

Impact:

Security Focus: BID 111774  / NVD: CVE-2020-5822

Privilege Escalation

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, 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.

 

 

CVE-2020-5823

Severity/CVSSv3:

High / 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

Impact:

Security Focus: BID 111775  / NVD: CVE-2020-5823

Privilege Escalation

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, 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.

 

 

CVE-2020-5824

Severity/CVSSv3:

Medium / 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References:

Impact:

Security Focus: BID 111776  / NVD: CVE-2020-5824

Denial of Service

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a denial of service vulnerability, which is a type of issue whereby a threat actor attempts to tie up the resources of a resident application, thereby making certain functions unavailable.

 

 

CVE-2020-5825

Severity/CVSSv3:

Medium / 6.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

References:

Impact:

Security Focus: BID 111778  / NVD: CVE-2020-5825

Arbitrary File Write

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to an arbitrary file write vulnerability, which is a type of issue whereby an attacker is able to overwrite existing files on the resident system without proper privileges.

 

 

 

CVE-2020-5826

Severity/CVSSv3:

Medium / 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References:

Impact:

Security Focus: BID 111777  / NVD: CVE-2020-5826

Out of Bounds

Description:

Symantec Endpoint Protection (SEP) Windows Endpoint and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

 

 

CVE-2020-5827

Severity/CVSSv3:

Low / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References:

Impact:

Security Focus: BID 111781  / NVD: CVE-2020-5827

Out of Bounds

Description:

Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

 

 

CVE-2020-5828

Severity/CVSSv3:

Low / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References:

Impact:

Security Focus: BID 111782  / NVD: CVE-2020-5828

Out of Bounds

Description:

Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

 

 

CVE-2020-5829

Severity/CVSSv3:

Low / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References:

Impact:

Security Focus: BID 111785  / NVD: CVE-2020-5829

Out of Bounds

Description:

Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

 

 

CVE-2020-5830

Severity/CVSSv3:

Low / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References:

Impact:

Security Focus: BID 111786  / NVD: CVE-2020-5830

Out of Bounds

Description:

Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

 

 

CVE-2020-5831

Severity/CVSSv3:

Low / 3.3 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References:

Impact:

Security Focus: BID 111787  / NVD: CVE-2020-5831

Out of Bounds

Description:

Symantec Endpoint Protection Manager (SEPM), prior to 14.2 RU2 MP1, may be susceptible to an out of bounds vulnerability, which is a type of issue that results in an existing application reading memory outside of the bounds of the memory that had been allocated to the program.

 

Mitigation & Additional Information

 

The following product updates have been made available to customers to remediate these issues:

  • SEP 14.2 RU2 MP1 (14.2.5569.2100)
  • SEPM 14.2 RU2 MP1
  • SEP SBE 14.2 RU2 MP1 (14.2.5569.2100)

In addition, a refresh of 14.2 RU2 (14.2.5334.2000) was released on February 10, 2020 to address this issue. This is available upon request from Symantec Technical Support.  

Symantec recommends the following measures to reduce risk of attack:

  • Restrict access to administrative or management systems to authorized privileged users.
  • Restrict remote access to trusted/authorized systems only.
  • Run under the principle of least privilege, where possible, to limit the impact of potential exploit.
  • Keep all operating systems and applications current with vendor patches.
  • Follow a multi-layered approach to security. At a minimum, run both firewall and antimalware applications to provide multiple points of detection and protection for both inbound and outbound threats.
  • Deploy network and host-based intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in the detection of attacks or malicious activity related to the exploitation of latent vulnerabilities.

 

Acknowledgements

  • CVE-2020-5820: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5821: Z0mb1E
  • CVE-2020-5822: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5823: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5824: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5825: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5826: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5827: Z0mb1E working with Trend Micro Zero Day Initiative
  • CVE-2020-5828: KPC of Trend Micro Zero Day Initiative
  • CVE-2020-5829: KPC of Trend Micro Zero Day Initiative
  • CVE-2020-5830: KPC of Trend Micro Zero Day Initiative
  • CVE-2020-5831: KPC of Trend Micro Zero Day Initiative