VDB-115654 · CVE-2018-3689 · GCVE-0-2018-3689

Intel Software Guard Extensions Platform Software Component AESM Daemon input validation

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.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Intel Software Guard Extensions Platform Software Component up to 2.1 on Linux. Affected by this vulnerability is an unknown functionality of the component AESM Daemon. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2018-3689. The attack can only be executed locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Intel Software Guard Extensions Platform Software Component up to 2.1 on Linux and classified as problematic. This vulnerability affects an unknown function of the component AESM Daemon. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

AESM daemon in Intel Software Guard Extensions Platform Software Component for Linux before 2.1.102 can effectively be disabled by a local attacker creating a denial of services like remote attestation provided by the AESM.

The bug was discovered 12/28/2017. The weakness was shared 04/03/2018 (Website). The advisory is available at 01.org. This vulnerability was named CVE-2018-3689 since 12/28/2017. Local access is required to approach this attack. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 96 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.1.102 eliminates this vulnerability.

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Productinfo

Vendor

Intel

Name

Software Guard Extensions Platform Software Component

Version

License

commercial

Website

Vendor: https://www.intel.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Software Guard Extensions Platform Software Component 2.1.102

Timelineinfo

12/28/2017 🔍
12/28/2017 +0 days 🔍
04/03/2018 +96 days 🔍
04/03/2018 +0 days 🔍
04/04/2018 +1 days 🔍
01/21/2020 +657 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: 01.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-3689 (🔍)
GCVE (CVE): GCVE-0-2018-3689
GCVE (VulDB): GCVE-100-115654

Entryinfo

Created: 04/04/2018 08:26
Updated: 01/21/2020 08:40
Changes: 04/04/2018 08:26 (59), 01/21/2020 08:40 (2)
Complete: 🔍
Cache ID: 216::103