Symantec Endpoint Encryption up to 11.1.3HF2 memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Symantec Endpoint Encryption up to 11.1.3HF2. Impacted is an unknown function. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2017-13683. The attack must originate from the local network. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Symantec Endpoint Encryption up to 11.1.3HF2. It has been classified as problematic. Affected is an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. CVE summarizes:

In Symantec Endpoint Encryption before SEE 11.1.3HF3, a kernel memory leak is a type of resource leak that can occur when a computer program incorrectly manages memory allocations in such a way that memory which is no longer needed is not released. In object-oriented programming, a memory leak may happen when an object is stored in memory but cannot be accessed by the running code.

The bug was discovered 10/09/2017. The weakness was shared 10/23/2017 (Website). The advisory is shared for download at symantec.com. This vulnerability is traded as CVE-2017-13683 since 08/24/2017. The attack can only be done within the local network. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 103839 (Symantec Endpoint Encryption < 11.1.3 HF3 (SYM17-010)), 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 370623 (Symantec Endpoint Encryption and Symantec Encryption Desktop Multiple Vulnerabilities (SYM17-010)).

Applying the patch 11.1.3HF3 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 (103839) and SecurityFocus (BID 101498†). The entries VDB-107642, VDB-107643 and VDB-108563 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 103839
Nessus Name: Symantec Endpoint Encryption < 11.1.3 HF3 (SYM17-010)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 11.1.3HF3

Timelineinfo

08/24/2017 🔍
10/09/2017 +46 days 🔍
10/09/2017 +0 days 🔍
10/13/2017 +4 days 🔍
10/23/2017 +9 days 🔍
10/23/2017 +0 days 🔍
10/23/2017 +0 days 🔍
10/24/2017 +1 days 🔍
01/20/2021 +1184 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: symantec.com
Researcher: Kyriakos Economou
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-13683 (🔍)
GCVE (CVE): GCVE-0-2017-13683
GCVE (VulDB): GCVE-100-108564
SecurityFocus: 101498

See also: 🔍

Entryinfo

Created: 10/24/2017 11:02
Updated: 01/20/2021 15:27
Changes: 10/24/2017 11:02 (68), 11/30/2019 11:01 (3), 01/20/2021 15:27 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!