VDB-92504 · CVE-2016-3699 · BID 93114

Linux Kernel UEFI Secure Boot access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$5k-$25k0.00

A vulnerability, which was classified as critical, has been found in Linux Kernel (Operating System). Affected by this issue is some unknown processing of the component UEFI Secure Boot. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.

The weakness was shared 10/07/2016 (Website). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2016-3699 since 03/30/2016. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/22/2022). The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 95046 (OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0163)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family OracleVM Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236154 (Red Hat Update for kernel-rt (RHSA-2016:2584)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (95046). The entries 79925, 80182, 82947 and 90658 are related to this item.

Affected

  • Red Hat Enterprise Linux 7.2

Productinfo

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Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.4
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95046
Nessus Name: OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0163)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863279
OpenVAS Name: RedHat Update for kernel RHSA-2016:2574-02
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

03/30/2016 🔍
09/22/2016 +176 days 🔍
10/07/2016 +15 days 🔍
10/07/2016 +0 days 🔍
10/08/2016 +1 days 🔍
11/21/2016 +44 days 🔍
11/22/2016 +1 days 🔍
09/22/2022 +2130 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: a4a5ed2835e8ea042868b7401dced3f517cafa76
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-3699 (🔍)
SecurityFocus: 93114 - Red Hat Enterprise Linux CVE-2016-3699 Local Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 10/08/2016 07:00 PM
Updated: 09/22/2022 04:31 PM
Changes: (1) advisory_identifier
Complete: 🔍

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