Adobe Flash Player up to 21.0.0.242 privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

A vulnerability classified as critical has been found in Adobe Flash Player up to 21.0.0.242 (Multimedia Player Software). This affects an unknown part. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier, as used in the Adobe Flash libraries in Microsoft Internet Explorer 10 and 11 and Microsoft Edge, has unknown impact and attack vectors, a different vulnerability than other CVEs listed in MS16-083.

The weakness was presented 06/16/2016 as MS16-083 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. This vulnerability is uniquely identified as CVE-2016-4135 since 04/27/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 91671 (Adobe Flash Player for Mac <= 21.0.0.242 Multiple Vulnerabilities (APSB16-18)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100289 (Microsoft Windows Update for Vulnerabilities in Adobe Flash Player in Internet Explorer (MS16-083)).

Applying the patch MS16-083 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91671) and Exploit-DB (40087). See 87978, 87979, 87980 and 87981 for similar entries.

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CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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VulDB Reliability: 🔍

NVD Base Score: 8.8
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CVSSv2info

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Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 91671
Nessus Name: Adobe Flash Player for Mac <= 21.0.0.242 Multiple Vulnerabilities (APSB16-18)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 881653
OpenVAS Name: Adobe Flash Player Security Updates( apsb16-18 )-MAC OS X
OpenVAS File: 🔍
OpenVAS Family: 🔍

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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS16-083

Timelineinfo

04/27/2016 🔍
06/16/2016 +50 days 🔍
06/16/2016 +0 days 🔍
06/16/2016 +0 days 🔍
06/17/2016 +1 days 🔍
06/17/2016 +0 days 🔍
08/24/2022 +2259 days 🔍

Sourcesinfo

Vendor: adobe.com

Advisory: MS16-083
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4135 (🔍)
OVAL: 🔍

SecurityTracker: 1036117

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/17/2016 16:44
Updated: 08/24/2022 09:22
Changes: 06/17/2016 16:44 (76), 01/27/2019 16:31 (6), 08/24/2022 09:22 (4)
Complete: 🔍

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