CVE-2018-3652 : Detail

CVE-2018-3652

7.6
/
High
A01-Broken Access Control
0.15%V4
Physical
2018-07-10
19h00 +00:00
2018-08-03
07h57 +00:00
CVE.org
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CVE Descriptions

Existing UEFI setting restrictions for DCI (Direct Connect Interface) in 5th and 6th generation Intel Xeon Processor E3 Family, Intel Xeon Scalable processors, and Intel Xeon Processor D Family allows a limited physical presence attacker to potentially access platform secrets via debug interfaces.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 7.6 HIGH CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Physical

The attack requires the attacker to physically touch or manipulate the vulnerable component. Physical interaction may be brief (e.g., evil maid attack1) or persistent. An example of such an attack is a cold boot attack in which an attacker gains access to disk encryption keys after physically accessing the target system. Other examples include peripheral attacks via FireWire/USB Direct Memory Access (DMA).

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Changed

An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 nvd@nist.gov
V2 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Products Mentioned

Configuraton 0

Intel>>Xeon_e3 >> Version 1505m_v6

Intel>>Xeon_e3 >> Version 1515m_v5

Intel>>Xeon_e3 >> Version 1535m_v5

Intel>>Xeon_e3 >> Version 1535m_v6

Intel>>Xeon_e3 >> Version 1545m_v5

Intel>>Xeon_e3 >> Version 1558l_v5

Intel>>Xeon_e3 >> Version 1565l_v5

Intel>>Xeon_e3 >> Version 1575m_v5

Intel>>Xeon_e3 >> Version 1578l_v5

Intel>>Xeon_e3 >> Version 1585_v5

Intel>>Xeon_e3 >> Version 1585l_v5

Intel>>Xeon_e3_1220_v5 >> Version -

Intel>>Xeon_e3_1220_v6 >> Version -

Intel>>Xeon_e3_1225_v5 >> Version -

Intel>>Xeon_e3_1225_v6 >> Version -

Intel>>Xeon_e3_1230_v5 >> Version -

Intel>>Xeon_e3_1230_v6 >> Version -

Intel>>Xeon_e3_1235l_v5 >> Version -

Intel>>Xeon_e3_1240_v5 >> Version -

Intel>>Xeon_e3_1240_v6 >> Version -

Intel>>Xeon_e3_1240l_v5 >> Version -

Intel>>Xeon_e3_1245_v5 >> Version -

Intel>>Xeon_e3_1245_v6 >> Version -

Intel>>Xeon_e3_1260l_v5 >> Version -

Intel>>Xeon_e3_1268l_v5 >> Version -

Intel>>Xeon_e3_1270_v5 >> Version -

Intel>>Xeon_e3_1270_v6 >> Version -

Intel>>Xeon_e3_1275_v5 >> Version -

Intel>>Xeon_e3_1275_v6 >> Version -

Intel>>Xeon_e3_1280_v5 >> Version -

Intel>>Xeon_e3_1280_v6 >> Version -

Intel>>Xeon_e3_1285_v6 >> Version -

Intel>>Xeon_e3_1501l_v6 >> Version -

Intel>>Xeon_e3_1501m_v6 >> Version -

Intel>>Xeon_e3_1505l_v5 >> Version -

Intel>>Xeon_e3_1505l_v6 >> Version -

Intel>>Xeon_e3_1505m_v5 >> Version -

Configuraton 0

Intel>>Xeon_bronze_3104 >> Version -

Intel>>Xeon_bronze_3106 >> Version -

Intel>>Xeon_gold >> Version 5115

Intel>>Xeon_gold >> Version 5118

Intel>>Xeon_gold >> Version 5119t

Intel>>Xeon_gold >> Version 5120

Intel>>Xeon_gold >> Version 5120t

Intel>>Xeon_gold >> Version 5122

Intel>>Xeon_gold >> Version 6126

Intel>>Xeon_gold >> Version 6126f

Intel>>Xeon_gold >> Version 6126t

Intel>>Xeon_gold >> Version 6128

Intel>>Xeon_gold >> Version 6130

Intel>>Xeon_gold >> Version 6130f

Intel>>Xeon_gold >> Version 6130t

Intel>>Xeon_gold >> Version 6132

Intel>>Xeon_gold >> Version 6134

Intel>>Xeon_gold >> Version 6134m

Intel>>Xeon_gold >> Version 6136

Intel>>Xeon_gold >> Version 6138

Intel>>Xeon_gold >> Version 6138f

Intel>>Xeon_gold >> Version 6138p

Intel>>Xeon_gold >> Version 6138t

Intel>>Xeon_gold >> Version 6140

Intel>>Xeon_gold >> Version 6140m

Intel>>Xeon_gold >> Version 6142

Intel>>Xeon_gold >> Version 6142f

Intel>>Xeon_gold >> Version 6142m

Intel>>Xeon_gold >> Version 6144

Intel>>Xeon_gold >> Version 6146

Intel>>Xeon_gold >> Version 6148

Intel>>Xeon_gold >> Version 6148f

Intel>>Xeon_gold >> Version 6150

Intel>>Xeon_gold >> Version 6152

Intel>>Xeon_gold >> Version 6154

Intel>>Xeon_platinum >> Version 8153

Intel>>Xeon_platinum >> Version 8156

Intel>>Xeon_platinum >> Version 8158

Intel>>Xeon_platinum >> Version 8160

Intel>>Xeon_platinum >> Version 8160f

Intel>>Xeon_platinum >> Version 8160m

Intel>>Xeon_platinum >> Version 8160t

Intel>>Xeon_platinum >> Version 8164

Intel>>Xeon_platinum >> Version 8168

Intel>>Xeon_platinum >> Version 8170

Intel>>Xeon_platinum >> Version 8170m

Intel>>Xeon_platinum >> Version 8176

Intel>>Xeon_platinum >> Version 8176f

Intel>>Xeon_platinum >> Version 8176m

Intel>>Xeon_platinum >> Version 8180

Intel>>Xeon_platinum >> Version 8180m

Intel>>Xeon_silver >> Version 4108

Intel>>Xeon_silver >> Version 4109t

Intel>>Xeon_silver >> Version 4110

Intel>>Xeon_silver >> Version 4112

Intel>>Xeon_silver >> Version 4114

Intel>>Xeon_silver >> Version 4114t

Intel>>Xeon_silver >> Version 4116

Intel>>Xeon_silver >> Version 4116t

Configuraton 0

Intel>>Xeon >> Version d-1513n

Intel>>Xeon >> Version d-1518

Intel>>Xeon >> Version d-1520

Intel>>Xeon >> Version d-1521

Intel>>Xeon >> Version d-1523n

Intel>>Xeon >> Version d-1527

Intel>>Xeon >> Version d-1528

Intel>>Xeon >> Version d-1529

Intel>>Xeon >> Version d-1531

Intel>>Xeon >> Version d-1533n

Intel>>Xeon >> Version d-1537

Intel>>Xeon >> Version d-1539

Intel>>Xeon >> Version d-1540

Intel>>Xeon >> Version d-1541

Intel>>Xeon >> Version d-1543n

Intel>>Xeon >> Version d-1548

Intel>>Xeon >> Version d-1553n

Intel>>Xeon >> Version d-1557

Intel>>Xeon >> Version d-1559

Intel>>Xeon >> Version d-1567

Intel>>Xeon >> Version d-1571

Intel>>Xeon >> Version d-1577

Intel>>Xeon >> Version d-2123it

Intel>>Xeon >> Version d-2141i

Intel>>Xeon >> Version d-2142it

Intel>>Xeon >> Version d-2143it

Intel>>Xeon >> Version d-2145nt

Intel>>Xeon >> Version d-2146nt

Intel>>Xeon >> Version d-2161i

Intel>>Xeon >> Version d-2163it

Intel>>Xeon >> Version d-2166nt

Intel>>Xeon >> Version d-2173it

Intel>>Xeon >> Version d-2177nt

Intel>>Xeon >> Version d-2183it

Intel>>Xeon >> Version d-2187nt

Configuraton 0

Intel>>Atom_c >> Version c2308

Intel>>Atom_c >> Version c2316

Intel>>Atom_c >> Version c2338

Intel>>Atom_c >> Version c2350

Intel>>Atom_c >> Version c2358

Intel>>Atom_c >> Version c2508

Intel>>Atom_c >> Version c2516

Intel>>Atom_c >> Version c2518

Intel>>Atom_c >> Version c2530

Intel>>Atom_c >> Version c2538

Intel>>Atom_c >> Version c2550

Intel>>Atom_c >> Version c2558

Intel>>Atom_c >> Version c2718

Intel>>Atom_c >> Version c2730

Intel>>Atom_c >> Version c2738

Intel>>Atom_c >> Version c2750

Intel>>Atom_c >> Version c2758

Intel>>Atom_c >> Version c3308

Intel>>Atom_c >> Version c3336

Intel>>Atom_c >> Version c3338

Intel>>Atom_c >> Version c3508

Intel>>Atom_c >> Version c3538

Intel>>Atom_c >> Version c3558

Intel>>Atom_c >> Version c3708

Intel>>Atom_c >> Version c3750

Intel>>Atom_c >> Version c3758

Intel>>Atom_c >> Version c3808

Intel>>Atom_c >> Version c3830

Intel>>Atom_c >> Version c3850

Intel>>Atom_c >> Version c3858

Intel>>Atom_c >> Version c3950

Intel>>Atom_c >> Version c3955

Intel>>Atom_c >> Version c3958

References