Symantec Encryption Management Server up to 3.4.2 resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Symantec Encryption Management Server up to 3.4.2. It has been rated as problematic. Impacted is an unknown function. The manipulation leads to resource consumption. This vulnerability is referenced as CVE-2018-5243. Remote exploitation of the attack is possible. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Symantec Encryption Management Server up to 3.4.2. This issue affects an unknown function. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.

The bug was discovered 08/13/2018. The weakness was published 08/20/2018 (Website). It is possible to read the advisory at support.symantec.com. The identification of this vulnerability is CVE-2018-5243 since 01/04/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 112155 (Symantec Encryption Management Server < 3.4.2 MP1 Denial of Service Vulnerability (SYMSA1458)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r.

Applying the patch 3.4.2 MP1 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 (112155) and SecurityFocus (BID 105062†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 112155
Nessus Name: Symantec Encryption Management Server < 3.4.2 MP1 Denial of Service Vulnerability (SYMSA1458)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 3.4.2 MP1

Timelineinfo

01/04/2018 🔍
08/13/2018 +220 days 🔍
08/13/2018 +0 days 🔍
08/20/2018 +6 days 🔍
08/20/2018 +0 days 🔍
08/20/2018 +0 days 🔍
08/21/2018 +1 days 🔍
08/28/2018 +7 days 🔍
05/04/2023 +1710 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: support.symantec.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5243 (🔍)
GCVE (CVE): GCVE-0-2018-5243
GCVE (VulDB): GCVE-100-123095
SecurityFocus: 105062 - Symantec Encryption Management Server CVE-2018-5243 Denial of Service Vulnerability
SecurityTracker: 1041527

Entryinfo

Created: 08/21/2018 07:44
Updated: 05/04/2023 07:21
Changes: 08/21/2018 07:44 (66), 03/17/2020 09:51 (5), 05/04/2023 07:21 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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