CVE-2019-10952 : 상세 정보

CVE-2019-10952

9.8
/
긴급
0.51%V4
2019-05-01
19h02 +00:00
Overflow
Network
2024-08-04
22h40 +00:00
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CVE 설명

Rockwell Automation CompactLogix 5370 Uncontrolled Resource Consumption

An attacker could send a crafted HTTP/HTTPS request to render the web server unavailable and/or lead to remote code execution caused by a stack-based buffer overflow vulnerability. A cold restart is required for recovering CompactLogix 5370 L1, L2, and L3 Controllers, Compact GuardLogix 5370 controllers, and Armor Compact GuardLogix 5370 Controllers Versions 20 - 30 and earlier.

CVE 해결 방법

Rockwell Automation strongly encourages users to apply the latest available version of firmware to keep up to date with the latest features, anomaly fixes, and security improvements. Update firmware to version FRN 31.011 that mitigates the associated risk. Rockwell Automation also recommends the following: https://compatibility.rockwellautomation.com/Pages/MultiProductDownload.aspx * For EtherNet/IP-based vulnerabilities (ID 1-14), block all traffic to and from outside the Manufacturing Zone by blocking or restricting access to Port 2222/TCP/UDP and Port 44818/TCP/UDP using proper network infrastructure controls, such as firewalls, UTM devices, or other security appliances. For more information on TCP/UDP ports used by Rockwell Automation Products, see Knowledgebase Article ID 898270 https://rockwellautomation.custhelp.com/app/answers/detail/a_id/898270/page/1  (login required). * Stratix users can use Device Manager or Studio 5000 Logix Designer to configure access control lists (ACL) to block/restrict ports. See section “Access Control Lists” in Stratix Managed Switches User Manual, publication 1783-UM007 http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1783-um007_-en-p.pdf , for detailed instructions. * For web-based vulnerabilities (ID 15-17), block all traffic from outside the Manufacturing Zone by blocking or restricting access to Port 80/443/TCP. * Stratix users can use Device Manager or Studio 5000 Logix Designer to configure ACL’s to block/restrict ports. See section “Access Control Lists” in Stratix Managed Switches User Manual, publication 1783-UM007 http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1783-um007_-en-p.pdf , for detailed instructions. * Utilize proper network infrastructure controls, such as firewalls, to help ensure that SMTP packets from unauthorized sources are blocked. * Consult the product documentation for specific features, such as a hardware key-switch setting, which may be used to block unauthorized changes, etc. * Use trusted software, software patches, and antivirus/antimalware programs and interact only with trusted websites and attachments. * Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet. For further information about the risks of unprotected Internet accessible control systems, please see Knowledgebase Article ID 494865 https://rockwellautomation.custhelp.com/app/answers/detail/a_id/494865/page/1  (login required). * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that a VPN is only as secure as the connected devices. For more information please refer to Rockwell’s Security Advisory: https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1075979 https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1075979

CVE 정보

관련 약점

CWE-ID 약점 이름 출처
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

메트릭

메트릭 점수 심각도 CVSS 벡터 출처
V3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

Network

The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more 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 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.

Unchanged

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

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

EPSS

EPSS는 취약점이 악용될 가능성을 예측하는 점수 모델입니다.

EPSS 점수

EPSS 모델은 0과 1(0~100%) 사이의 확률 점수를 생성합니다. 점수가 높을수록 취약점이 악용될 가능성이 높습니다.

EPSS 백분위수

백분위수는 EPSS 점수에 따라 CVE의 순위를 매기는 데 사용됩니다. 예를 들어 EPSS 점수 기준 95번째 백분위수의 CVE는 다른 CVE의 95%보다 악용될 가능성이 높습니다.

언급된 제품

구성 0

Rockwellautomation>>Compactlogix_5370_l1_firmware >> Version 부터 (포함) 20.011 까지 (포함) 30.014

Rockwellautomation>>Compactlogix_5370_l1 >> Version -

구성 0

Rockwellautomation>>Compactlogix_5370_l2_firmware >> Version 부터 (포함) 20.011 까지 (포함) 30.014

Rockwellautomation>>Compactlogix_5370_l2 >> Version -

구성 0

Rockwellautomation>>Compactlogix_5370_l3_firmware >> Version 부터 (포함) 20.011 까지 (포함) 30.014

Rockwellautomation>>Compactlogix_5370_l3 >> Version -

구성 0

Rockwellautomation>>Armor_compact_guardlogix_5370_firmware >> Version 부터 (포함) 20.011 까지 (포함) 30.014

Rockwellautomation>>Armor_compact_guardlogix_5370 >> Version -

참고 자료

http://www.securityfocus.com/bid/108118
Tags : vdb-entry, x_refsource_BID