Detections
Analytics
Lenovo System Update < 5.06.0034 Multiple Vulnerabilities
high Nessus Plugin ID 83736
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Synopsis
The remote Windows host contains an application that is affected by multiple vulnerabilities.Description
The version of Lenovo System Update installed on the remote host is prior to 5.06.0034. It is, therefore, affected by the following vulnerabilities :- A flaw exists in SUService.exe (System Update service) due to generating security tokens for a named pipe in a predictable manner. A local attacker, by sending a valid token, can exploit this flaw to execute commands to gain elevated privileges. (CVE-2015-2219)
- A flaw exists due to a failure to properly validate the certificate authority chain when downloading updates. A man-in-the-middle attacker, using a crafted certificate, can exploit this flaw to inject malicious updates, thereby allowing the execution of arbitrary files.
(CVE-2015-2233)
- A flaw exists due to signature validation for updates occurring in a directory having world-writeable permissions. This can allow a local attacker to swap the update before it is installed and thereby gain elevated privileges. (CVE-2015-2234)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Lenovo System Update 5.06.0034 or later.See Also
https://support.lenovo.com/us/en/product_security/lsu_privilege
Plugin Details
Severity: High
ID: 83736
File Name: lenovo_su_5_6_0_34.nasl
Version: 1.6
Type: local
Agent: windows
Family: Windows
Published: 5/21/2015
Updated: 7/12/2018
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.2
CVSS v2
Risk Factor: High
Base Score: 8.3
Temporal Score: 7.2
Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/a:lenovo:system_update
Required KB Items: installed_sw/Lenovo System Update
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/14/2015
Vulnerability Publication Date: 4/14/2015
Exploitable With
Metasploit (Lenovo System Update Privilege Escalation)