CVE-2018-9085 : 詳細

CVE-2018-9085

4.9
/
中
0.14%V4
2018-11-16
14h00 +00:00
A01-Broken Access Control
Network
2024-08-05
07h17 +00:00
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CVE の説明

Missing System x Flash Memory Write Protection Lock Bit

A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.

CVE の解決策

Update UEFI firmware

CVE の情報

関連する弱点

CWE-ID 弱点名 出典
CWE-276 Incorrect Default Permissions
During installation, installed file permissions are set to allow anyone to modify those files.

メトリクス

メトリクス スコア 深刻度 CVSS ベクター 出典
V3.0 4.9 MEDIUM CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

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.

Network

A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers).

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 against the vulnerable component.

Privileges Required

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

High

The attacker is authorized with (i.e. requires) privileges that provide significant (e.g. administrative) control over the vulnerable component that could affect component-wide settings and files.

User Interaction

This metric captures the requirement for a 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

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Unchanged

An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same.

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

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.

None

There is no loss of confidentiality within the impacted component.

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.

None

There is no impact to availability within the impacted component.

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 that one has in the description of a vulnerability.

Environmental Metrics

nvd@nist.gov
V2 4 AV:N/AC:L/Au:S/C:N/I:P/A:N nvd@nist.gov

EPSS

EPSSは脆弱性が悪用される可能性を予測するスコアリングモデルです。

EPSSスコア

EPSSモデルは0から1(0〜100%)の確率スコアを算出します。スコアが高いほど、脆弱性が悪用される可能性が高いことを示します。

EPSSパーセンタイル

パーセンタイルはCVEをEPSSスコアで順位付けするために使用されます。例えば、EPSSスコアで95パーセンタイルにあるCVEは、他の95%のCVEよりも悪用される可能性が高いことを意味します。パーセンタイルはCVEのEPSSスコアを他のCVEと比較するために使用されます。

関連製品

構成 0

Lenovo>>Flex_system_x240_m4_firmware >> Version ~まで(含まない) a3e122b

Lenovo>>Flex_system_x240_m4 >> Version -

構成 0

Lenovo>>Flex_system_x440_m4_firmware >> Version ~まで(含まない) cge122b

Lenovo>>Flex_system_x440_m4 >> Version -

構成 0

Lenovo>>System_x3750_m4_firmware >> Version ~まで(含まない) a5e124b

Lenovo>>System_x3750_m4 >> Version -

構成 0

Ibm>>Bladecenter_hs23_firmware >> Version ~まで(含まない) tke160c

Ibm>>Bladecenter >> Version hs23

構成 0

Ibm>>Bladecenter_hs23e_firmware >> Version ~まで(含まない) ahe160c

Ibm>>Bladecenter >> Version hs23e

構成 0

Ibm>>Flex_system_x220_m4_firmware >> Version ~まで(含まない) kse158c

Ibm>>Flex_system_x220 >> Version -

構成 0

Ibm>>Flex_system_x222_m4_firmware >> Version ~まで(含まない) cce160c

Ibm>>Flex_system_x222_m4 >> Version -

構成 0

Ibm>>Flex_system_x240_m4_firmware >> Version ~まで(含まない) ahe160c

Ibm>>Flex_system_x240_m4 >> Version -

構成 0

Ibm>>Flex_system_x280_x6_firmware >> Version ~まで(含まない) n3e132w

Ibm>>Flex_system_x280_x6 >> Version -

構成 0

Ibm>>Flex_system_x440_m4_firmware >> Version ~まで(含まない) cne162d

Ibm>>Flex_system_x440_m4 >> Version -

構成 0

Ibm>>Flex_system_x480_x6_firmware >> Version ~まで(含まない) n3e132w

Ibm>>Flex_system_x480_x6 >> Version -

構成 0

Ibm>>Flex_system_x880_x6_firmware >> Version ~まで(含まない) n2e130e

Ibm>>Flex_system_x880_x6 >> Version -

構成 0

Ibm>>Idataplex_dx360_m4_firmware >> Version ~まで(含まない) fhe120d

Ibm>>Idataplex_dx360_m4_ >> Version -

構成 0

Ibm>>Idataplex_dx360_m4_water_cooled_firmware >> Version ~まで(含まない) fhe120d

Ibm>>Idataplex_dx360_m4_ >> Version -

構成 0

Ibm>>System_x3100_m4_firmware >> Version ~まで(含まない) jqe184c

Ibm>>System_x3100_m4 >> Version *

構成 0

Ibm>>System_x3100_m5_firmware >> Version ~まで(含まない) j9e134c

Ibm>>System_x3100_m5 >> Version *

構成 0

Ibm>>System_x3250_m4_firmware >> Version ~まで(含まない) jqe184c

Ibm>>System_x3250_m4 >> Version *

構成 0

Ibm>>System_x3250_m5_firmware >> Version ~まで(含まない) jue134c

Ibm>>System_x3250_m5 >> Version *

構成 0

Ibm>>System_x3300_m4_firmware >> Version ~まで(含まない) yae156c

Ibm>>System_x3300_m4 >> Version *

構成 0

Ibm>>System_x3500_m4_firmware >> Version ~まで(含まない) y5e158c

Ibm>>System_x3500_m4 >> Version *

構成 0

Ibm>>System_x3530_m4_firmware >> Version ~まで(含まない) bee164c

Ibm>>System_x3530_m4 >> Version *

構成 0

Ibm>>System_x3550_m4_firmware >> Version ~まで(含まない) d7e166d

Ibm>>System_x3550_m4 >> Version *

構成 0

Ibm>>System_x3630_m4_firmware >> Version ~まで(含まない) vve162c

Ibm>>System_x3630_m4 >> Version *

構成 0

Ibm>>System_x3650_m4_firmware >> Version ~まで(含まない) vve160c

Ibm>>System_x3650_m4 >> Version *

構成 0

Ibm>>System_x3650_m4_bd_firmware >> Version ~まで(含まない) vve160c

Ibm>>System_x3650_m4_bd >> Version *

構成 0

Ibm>>System_x3650_m4_hd_firmware >> Version ~まで(含まない) vve160c

Ibm>>System_x3650_m4_hd >> Version *

構成 0

Ibm>>System_x3750_m4_firmware >> Version ~まで(含まない) koe160c

Ibm>>System_x3750_m4 >> Version *

構成 0

Ibm>>System_x3850_x6_firmware >> Version ~まで(含まない) a8e128c

Ibm>>System_x3850_x6 >> Version *

構成 0

Ibm>>System_x3950_x6_firmware >> Version ~まで(含まない) bee164c

Ibm>>System_x3950_x6 >> Version *

参考資料