VDB-90421 · CVE-2016-6257 · BID 92179

Lenovo Ultraslim Dongle AES Counter KeyJack cryptographic issue

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Lenovo Ultraslim Dongle. Affected by this issue is some unknown functionality of the component AES Counter. This manipulation causes cryptographic issue (KeyJack). This vulnerability is handled as CVE-2016-6257. The attack can only be done within the local network. There is not any exploit available. This vulnerability is historically significant due to its background and the way it was received.

Detailsinfo

A vulnerability was found in Lenovo Ultraslim Dongle. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component AES Counter. The manipulation with an unknown input leads to a cryptographic issue vulnerability (KeyJack). The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The firmware in Lenovo Ultraslim dongles, as used with Lenovo Liteon SK-8861, Ultraslim Wireless, and Silver Silk keyboards and Liteon ZTM600 and Ultraslim Wireless mice, does not enforce incrementing AES counters, which allows remote attackers to inject encrypted keyboard input into the system by leveraging proximity to the dongle, aka a "KeyJack injection attack."

The weakness was released 08/02/2016 by Basti (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2016-6257 since 07/20/2016. The attack can only be initiated within the local network. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/16/2019). MITRE ATT&CK project uses the attack technique T1600 for this issue. Due to its background and reception, this vulnerability has a historic impact.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92179†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

Lenovo Liteon SK-8861
Lenovo Ultraslim Wireless
Lenovo Silver Silk Keyboard
Lenovo Liteon ZTM600
Lenovo Ultraslim Wireless Mouse

Productinfo

Vendor

Lenovo

Name

Ultraslim Dongle

License

commercial

Website

Vendor: https://www.lenovo.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: KeyJack
Class: Cryptographic issue / KeyJack
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/20/2016 🔍
07/28/2016 +8 days 🔍
08/02/2016 +5 days 🔍
08/02/2016 +0 days 🔍
08/03/2016 +1 days 🔍
03/16/2019 +955 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: securityfocus.com⛔
Researcher: Basti
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6257 (🔍)
GCVE (CVE): GCVE-0-2016-6257
GCVE (VulDB): GCVE-100-90421
SecurityFocus: 92179 - Multiple Lenovo CVE-2016-6257 Products Remote Security Vulnerability

Entryinfo

Created: 08/03/2016 10:07
Updated: 03/16/2019 14:05
Changes: 08/03/2016 10:07 (50), 03/16/2019 14:05 (13)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.