CVE-2017-3856 : Détail

CVE-2017-3856

7.5
/
Haute
0.86%V4
Network
2017-03-22
18h00 +00:00
2017-07-11
07h57 +00:00
CVE.org
NVD
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Descriptions du CVE

A vulnerability in the web user interface of Cisco IOS XE 3.1 through 3.17 could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient resource handling by the affected software when the web user interface is under a high load. An attacker could exploit this vulnerability by sending a high number of requests to the web user interface of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. To exploit this vulnerability, the attacker must have access to the management interface of the affected software, which is typically connected to a restricted management network. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the web user interface of the software is enabled. By default, the web user interface is not enabled. Cisco Bug IDs: CSCup70353.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-399 Category : Resource Management Errors
Weaknesses in this category are related to improper management of system resources.
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V3.0 7.5 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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

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.

None

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

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.

None

There is no loss of integrity within 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 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 that one has in the description of a vulnerability.

Environmental Metrics

 nvd@nist.gov
V2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Products Mentioned

Configuraton 0

Cisco>>Ios_xe >> Version 3.1.0s

Cisco>>Ios_xe >> Version 3.1.0sg

Cisco>>Ios_xe >> Version 3.1.1s

Cisco>>Ios_xe >> Version 3.1.1sg

Cisco>>Ios_xe >> Version 3.1.2s

Cisco>>Ios_xe >> Version 3.1.3as

Cisco>>Ios_xe >> Version 3.1.3s

Cisco>>Ios_xe >> Version 3.1.4as

Cisco>>Ios_xe >> Version 3.1.4s

Cisco>>Ios_xe >> Version 3.1s

Cisco>>Ios_xe >> Version 3.1sg

Cisco>>Ios_xe >> Version 3.2.0ja

Cisco>>Ios_xe >> Version 3.2.0se

Cisco>>Ios_xe >> Version 3.2.0sg

Cisco>>Ios_xe >> Version 3.2.0xo

Cisco>>Ios_xe >> Version 3.2.1s

Cisco>>Ios_xe >> Version 3.2.1se

Cisco>>Ios_xe >> Version 3.2.1sg

Cisco>>Ios_xe >> Version 3.2.1xo

Cisco>>Ios_xe >> Version 3.2.2s

Cisco>>Ios_xe >> Version 3.2.2se

Cisco>>Ios_xe >> Version 3.2.2sg

Cisco>>Ios_xe >> Version 3.2.3se

Cisco>>Ios_xe >> Version 3.2.3sg

Cisco>>Ios_xe >> Version 3.2.4sg

Cisco>>Ios_xe >> Version 3.2.5sg

Cisco>>Ios_xe >> Version 3.2.6sg

Cisco>>Ios_xe >> Version 3.2.7sg

Cisco>>Ios_xe >> Version 3.2.8sg

Cisco>>Ios_xe >> Version 3.2.9sg

Cisco>>Ios_xe >> Version 3.2.11sg

Cisco>>Ios_xe >> Version 3.2ja

Cisco>>Ios_xe >> Version 3.2s

Cisco>>Ios_xe >> Version 3.2se

Cisco>>Ios_xe >> Version 3.2sg

Cisco>>Ios_xe >> Version 3.2xo

Cisco>>Ios_xe >> Version 3.3.0s

Cisco>>Ios_xe >> Version 3.3.0se

Cisco>>Ios_xe >> Version 3.3.0sg

Cisco>>Ios_xe >> Version 3.3.0sq

Cisco>>Ios_xe >> Version 3.3.0xo

Cisco>>Ios_xe >> Version 3.3.1s

Cisco>>Ios_xe >> Version 3.3.1se

Cisco>>Ios_xe >> Version 3.3.1sg

Cisco>>Ios_xe >> Version 3.3.1sq

Cisco>>Ios_xe >> Version 3.3.1xo

Cisco>>Ios_xe >> Version 3.3.2s

Cisco>>Ios_xe >> Version 3.3.2se

Cisco>>Ios_xe >> Version 3.3.2sg

Cisco>>Ios_xe >> Version 3.3.2xo

Cisco>>Ios_xe >> Version 3.3.3se

Cisco>>Ios_xe >> Version 3.3.4se

Cisco>>Ios_xe >> Version 3.3.5se

Cisco>>Ios_xe >> Version 3.3s

Cisco>>Ios_xe >> Version 3.3se

Cisco>>Ios_xe >> Version 3.3sg

Cisco>>Ios_xe >> Version 3.3sq

Cisco>>Ios_xe >> Version 3.3xo

Cisco>>Ios_xe >> Version 3.4.0as

Cisco>>Ios_xe >> Version 3.4.0s

Cisco>>Ios_xe >> Version 3.4.0sg

Cisco>>Ios_xe >> Version 3.4.0sq

Cisco>>Ios_xe >> Version 3.4.1s

Cisco>>Ios_xe >> Version 3.4.1sg

Cisco>>Ios_xe >> Version 3.4.1sq

Cisco>>Ios_xe >> Version 3.4.2s

Cisco>>Ios_xe >> Version 3.4.2sg

Cisco>>Ios_xe >> Version 3.4.3s

Cisco>>Ios_xe >> Version 3.4.3sg

Cisco>>Ios_xe >> Version 3.4.4s

Cisco>>Ios_xe >> Version 3.4.4sg

Cisco>>Ios_xe >> Version 3.4.5s

Cisco>>Ios_xe >> Version 3.4.5sg

Cisco>>Ios_xe >> Version 3.4.6s

Cisco>>Ios_xe >> Version 3.4.6sg

Cisco>>Ios_xe >> Version 3.4.7sg

Cisco>>Ios_xe >> Version 3.4.8sg

Cisco>>Ios_xe >> Version 3.4s

Cisco>>Ios_xe >> Version 3.4sg

Cisco>>Ios_xe >> Version 3.4sq

Cisco>>Ios_xe >> Version 3.5.0e

Cisco>>Ios_xe >> Version 3.5.0s

Cisco>>Ios_xe >> Version 3.5.0sq

Cisco>>Ios_xe >> Version 3.5.1e

Cisco>>Ios_xe >> Version 3.5.1s

Cisco>>Ios_xe >> Version 3.5.1sq

Cisco>>Ios_xe >> Version 3.5.2e

Cisco>>Ios_xe >> Version 3.5.2s

Cisco>>Ios_xe >> Version 3.5.2sq

Cisco>>Ios_xe >> Version 3.5.3e

Cisco>>Ios_xe >> Version 3.5.3sq

Cisco>>Ios_xe >> Version 3.5.4sq

Cisco>>Ios_xe >> Version 3.5.5sq

Cisco>>Ios_xe >> Version 3.5e

Cisco>>Ios_xe >> Version 3.5s

Cisco>>Ios_xe >> Version 3.5sq

Cisco>>Ios_xe >> Version 3.6.0e

Cisco>>Ios_xe >> Version 3.6.0s

Cisco>>Ios_xe >> Version 3.6.1e

Cisco>>Ios_xe >> Version 3.6.1s

Cisco>>Ios_xe >> Version 3.6.2ae

Cisco>>Ios_xe >> Version 3.6.2s

Cisco>>Ios_xe >> Version 3.6.3e

Cisco>>Ios_xe >> Version 3.6.4e

Cisco>>Ios_xe >> Version 3.6.5ae

Cisco>>Ios_xe >> Version 3.6.5be

Cisco>>Ios_xe >> Version 3.6.5e

Cisco>>Ios_xe >> Version 3.6e

Cisco>>Ios_xe >> Version 3.6s

Cisco>>Ios_xe >> Version 3.7.0bs

Cisco>>Ios_xe >> Version 3.7.0e

Cisco>>Ios_xe >> Version 3.7.0s

Cisco>>Ios_xe >> Version 3.7.1e

Cisco>>Ios_xe >> Version 3.7.1s

Cisco>>Ios_xe >> Version 3.7.2e

Cisco>>Ios_xe >> Version 3.7.2s

Cisco>>Ios_xe >> Version 3.7.2ts

Cisco>>Ios_xe >> Version 3.7.3e

Cisco>>Ios_xe >> Version 3.7.3s

Cisco>>Ios_xe >> Version 3.7.4e

Cisco>>Ios_xe >> Version 3.7.4s

Cisco>>Ios_xe >> Version 3.7.5s

Cisco>>Ios_xe >> Version 3.7.6s

Cisco>>Ios_xe >> Version 3.7.7s

Cisco>>Ios_xe >> Version 3.7e

Cisco>>Ios_xe >> Version 3.7s

Cisco>>Ios_xe >> Version 3.8.0e

Cisco>>Ios_xe >> Version 3.8.0ex

Cisco>>Ios_xe >> Version 3.8.0s

Cisco>>Ios_xe >> Version 3.8.1e

Cisco>>Ios_xe >> Version 3.8.1s

Cisco>>Ios_xe >> Version 3.8.2e

Cisco>>Ios_xe >> Version 3.8.2s

Cisco>>Ios_xe >> Version 3.8e

Cisco>>Ios_xe >> Version 3.8ex

Cisco>>Ios_xe >> Version 3.8s

Cisco>>Ios_xe >> Version 3.9.0e

Cisco>>Ios_xe >> Version 3.9.0s

Cisco>>Ios_xe >> Version 3.9.1s

Cisco>>Ios_xe >> Version 3.9.2s

Cisco>>Ios_xe >> Version 3.9e

Cisco>>Ios_xe >> Version 3.9s

Cisco>>Ios_xe >> Version 3.10.0s

Cisco>>Ios_xe >> Version 3.10.1s

Cisco>>Ios_xe >> Version 3.10.1xbs

Cisco>>Ios_xe >> Version 3.10.2s

Cisco>>Ios_xe >> Version 3.10.2ts

Cisco>>Ios_xe >> Version 3.10.3s

Cisco>>Ios_xe >> Version 3.10.4s

Cisco>>Ios_xe >> Version 3.10.5s

Cisco>>Ios_xe >> Version 3.10.6s

Cisco>>Ios_xe >> Version 3.10.7s

Cisco>>Ios_xe >> Version 3.10.8s

Cisco>>Ios_xe >> Version 3.10s

Cisco>>Ios_xe >> Version 3.11.0s

Cisco>>Ios_xe >> Version 3.11.1s

Cisco>>Ios_xe >> Version 3.11.2s

Cisco>>Ios_xe >> Version 3.11.3s

Cisco>>Ios_xe >> Version 3.11.4s

Cisco>>Ios_xe >> Version 3.11s

Cisco>>Ios_xe >> Version 3.12.0as

Cisco>>Ios_xe >> Version 3.12.0s

Cisco>>Ios_xe >> Version 3.12.1s

Cisco>>Ios_xe >> Version 3.12.2s

Cisco>>Ios_xe >> Version 3.12.3s

Cisco>>Ios_xe >> Version 3.12.4s

Cisco>>Ios_xe >> Version 3.12s

Cisco>>Ios_xe >> Version 3.13.0as

Cisco>>Ios_xe >> Version 3.13.0s

Cisco>>Ios_xe >> Version 3.13.1s

Cisco>>Ios_xe >> Version 3.13.2as

Cisco>>Ios_xe >> Version 3.13.2s

Cisco>>Ios_xe >> Version 3.13.3s

Cisco>>Ios_xe >> Version 3.13.4s

Cisco>>Ios_xe >> Version 3.13s

Cisco>>Ios_xe >> Version 3.14.0s

Cisco>>Ios_xe >> Version 3.14.1s

Cisco>>Ios_xe >> Version 3.14.2s

Cisco>>Ios_xe >> Version 3.14.3s

Cisco>>Ios_xe >> Version 3.14.4s

Cisco>>Ios_xe >> Version 3.14s

Cisco>>Ios_xe >> Version 3.15.0s

Cisco>>Ios_xe >> Version 3.15.1cs

Cisco>>Ios_xe >> Version 3.15.1s

Cisco>>Ios_xe >> Version 3.15.2s

Cisco>>Ios_xe >> Version 3.15.3s

Cisco>>Ios_xe >> Version 3.15s

Cisco>>Ios_xe >> Version 3.16.0cs

Cisco>>Ios_xe >> Version 3.16.0s

Cisco>>Ios_xe >> Version 3.16.1as

Cisco>>Ios_xe >> Version 3.16.1s

Cisco>>Ios_xe >> Version 3.16s

Cisco>>Ios_xe >> Version 3.17.0s

Cisco>>Ios_xe >> Version 3.17.1as

Cisco>>Ios_xe >> Version 3.17.1s

Cisco>>Ios_xe >> Version 3.17.2s

Cisco>>Ios_xe >> Version 3.17.3s

Cisco>>Ios_xe >> Version 3.17s

Références

http://www.securitytracker.com/id/1038101
Tags : vdb-entry, x_refsource_SECTRACK
http://www.securityfocus.com/bid/97007
Tags : vdb-entry, x_refsource_BID
Les informations affichées sur CVE Find proviennent de plusieurs sources de référence rigoureusement sélectionnées. Les données CVE sont fournies par MITRE Corporation et la National Vulnerability Database (NVD). Le catalogue des vulnérabilités activement exploitées (KEV) provient de la Cybersecurity and Infrastructure Security Agency (CISA), tandis que les scores EPSS sont issus de FIRST.org. Enfin, les données relatives aux faiblesses logicielles (CWE) et aux schémas d'attaque courants (CAPEC) sont maintenues par MITRE Corporation, et les informations sur les configurations logicielles et matérielles (CPE) proviennent du NVD.