MS15-129: Security Update for Silverlight to Address Remote Code Execution (3106614)

high Nessus Plugin ID 87258
New! Plugin Severity Now Using CVSS v3

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Synopsis

A multimedia application framework installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Microsoft Silverlight installed on the remote Windows host is affected by the following vulnerabilities :

- Multiple information disclosure vulnerabilities exist due to a failure to properly handle objects in memory.
An attacker can exploit these issues, via crafted Silverlight content, to more reliably predict pointer values and thus degrade the effectiveness of the Address Space Layout Randomization (ASLR) security feature, allowing the system to be further compromised.
(CVE-2015-6114, CVE-2015-6165)

- A remote code execution vulnerability exists due to incorrect handling of certain open and close requests, which result in read and write access violations. A remote attacker can exploit this vulnerability, via a specially crafted Silverlight application, to gain privileges and take complete control of the affected host. (CVE-2015-6166)

Solution

Microsoft has released a set of patches for Silverlight 5.

See Also

https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-129

Plugin Details

Severity: High

ID: 87258

File Name: smb_nt_ms15-129.nasl

Version: 1.9

Type: local

Agent: windows

Published: 12/8/2015

Updated: 11/15/2018

Dependencies: smb_hotfixes.nasl, silverlight_detect.nasl, ms_bulletin_checks_possible.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:silverlight

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 12/8/2015

Vulnerability Publication Date: 12/8/2015

Reference Information

CVE: CVE-2015-6114, CVE-2015-6165, CVE-2015-6166

BID: 78502, 78504, 78505

MSFT: MS15-129

MSKB: 3106614