CVE-2021-1377
20h10 +00:00
CVE の説明
Cisco IOS and IOS XE Software ARP Resource Management Exhaustion Denial of Service Vulnerability
A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. This vulnerability exists because ARP entries are mismanaged. An attacker could exploit this vulnerability by continuously sending traffic that results in incomplete ARP entries. A successful exploit could allow the attacker to cause ARP requests on the device to be unsuccessful for legitimate hosts, resulting in a denial of service (DoS) condition.CVE の情報
関連する弱点
| 弱点名 | 出典 | |
|---|---|---|
| Category : Resource Management Errors Weaknesses in this category are related to improper management of system resources. |
||
| 情報がありません。 |
メトリクス
| メトリクス | スコア | 深刻度 | CVSS ベクター | 出典 |
|---|---|---|---|---|
| V3.1 | 5.8 | MEDIUM |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
詳細情報
Base: Exploitabilty MetricsThe 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 MetricsThe 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 MetricsThe 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. 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. Low Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component. Temporal MetricsThe 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 MetricsThese 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. |
|
| V2 | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P | nvd@nist.gov |
EPSS
EPSSスコア
EPSSパーセンタイル
関連製品
構成 0
Cisco>>Ios >> Version 12.2\(6\)i1
Cisco>>Ios >> Version 15.1\(3\)svr1
Cisco>>Ios >> Version 15.1\(3\)svr2
Cisco>>Ios >> Version 15.1\(3\)svr3
Cisco>>Ios >> Version 15.1\(3\)svs
Cisco>>Ios >> Version 15.1\(3\)svs1
Cisco>>Ios >> Version 15.2\(2\)e6
Cisco>>Ios >> Version 15.2\(2\)e7
Cisco>>Ios >> Version 15.2\(2\)e7b
Cisco>>Ios >> Version 15.2\(2\)e8
Cisco>>Ios >> Version 15.2\(2\)e9
Cisco>>Ios >> Version 15.2\(2\)e9a
Cisco>>Ios >> Version 15.2\(2\)e10
Cisco>>Ios >> Version 15.2\(3\)e5
Cisco>>Ios >> Version 15.2\(4\)e4
Cisco>>Ios >> Version 15.2\(4\)e5
Cisco>>Ios >> Version 15.2\(4\)e5a
Cisco>>Ios >> Version 15.2\(4\)e6
Cisco>>Ios >> Version 15.2\(4\)e7
Cisco>>Ios >> Version 15.2\(4\)e8
Cisco>>Ios >> Version 15.2\(4\)e9
Cisco>>Ios >> Version 15.2\(4\)e10
Cisco>>Ios >> Version 15.2\(4\)e10a
Cisco>>Ios >> Version 15.2\(4\)ea6
Cisco>>Ios >> Version 15.2\(4\)ea7
Cisco>>Ios >> Version 15.2\(4\)ea8
Cisco>>Ios >> Version 15.2\(4\)ea9
Cisco>>Ios >> Version 15.2\(4\)ea9a
Cisco>>Ios >> Version 15.2\(4\)ea10
Cisco>>Ios >> Version 15.2\(5\)e1
Cisco>>Ios >> Version 15.2\(5\)e2
Cisco>>Ios >> Version 15.2\(5\)e2b
Cisco>>Ios >> Version 15.2\(5\)e2c
Cisco>>Ios >> Version 15.2\(5\)ex
Cisco>>Ios >> Version 15.2\(5a\)e1
Cisco>>Ios >> Version 15.2\(6\)e
Cisco>>Ios >> Version 15.2\(6\)e0a
Cisco>>Ios >> Version 15.2\(6\)e0c
Cisco>>Ios >> Version 15.2\(6\)e1
Cisco>>Ios >> Version 15.2\(6\)e1a
Cisco>>Ios >> Version 15.2\(6\)e1s
Cisco>>Ios >> Version 15.2\(6\)e2
Cisco>>Ios >> Version 15.2\(6\)e2a
Cisco>>Ios >> Version 15.2\(6\)e2b
Cisco>>Ios >> Version 15.2\(6\)e3
Cisco>>Ios >> Version 15.2\(6\)eb
Cisco>>Ios >> Version 15.2\(7\)e
Cisco>>Ios >> Version 15.2\(7\)e0a
Cisco>>Ios >> Version 15.2\(7\)e0b
Cisco>>Ios >> Version 15.2\(7\)e0s
Cisco>>Ios >> Version 15.2\(7\)e1
Cisco>>Ios >> Version 15.2\(7\)e1a
Cisco>>Ios >> Version 15.2\(7\)e2
Cisco>>Ios >> Version 15.2\(7\)e2a
Cisco>>Ios >> Version 15.2\(7\)e2b
Cisco>>Ios >> Version 15.2\(7\)e3
Cisco>>Ios >> Version 15.2\(7a\)e0b
Cisco>>Ios >> Version 15.2\(7b\)e0b
Cisco>>Ios >> Version 15.3\(3\)jpc97
Cisco>>Ios >> Version 15.4\(1\)sy
Cisco>>Ios >> Version 15.4\(1\)sy1
Cisco>>Ios >> Version 15.4\(1\)sy2
Cisco>>Ios >> Version 15.4\(1\)sy3
Cisco>>Ios >> Version 15.4\(1\)sy4
Cisco>>Ios >> Version 15.5\(1\)sy
Cisco>>Ios >> Version 15.5\(1\)sy1
Cisco>>Ios >> Version 15.5\(1\)sy2
Cisco>>Ios >> Version 15.5\(1\)sy3
Cisco>>Ios >> Version 15.5\(1\)sy4
Cisco>>Ios >> Version 15.5\(1\)sy5
Cisco>>Ios >> Version 15.5\(1\)sy6
Cisco>>Ios >> Version 15.5\(3\)m4
Cisco>>Ios >> Version 15.5\(3\)m4a
Cisco>>Ios >> Version 15.5\(3\)m4b
Cisco>>Ios >> Version 15.5\(3\)m4c
Cisco>>Ios >> Version 15.5\(3\)m5
Cisco>>Ios >> Version 15.5\(3\)m6
Cisco>>Ios >> Version 15.5\(3\)m6a
Cisco>>Ios >> Version 15.5\(3\)m7
Cisco>>Ios >> Version 15.5\(3\)m8
Cisco>>Ios >> Version 15.5\(3\)m9
Cisco>>Ios >> Version 15.5\(3\)m10
Cisco>>Ios >> Version 15.5\(3\)m11
Cisco>>Ios >> Version 15.5\(3\)s4
Cisco>>Ios >> Version 15.5\(3\)s5
Cisco>>Ios >> Version 15.5\(3\)s6
Cisco>>Ios >> Version 15.5\(3\)s6a
Cisco>>Ios >> Version 15.5\(3\)s6b
Cisco>>Ios >> Version 15.5\(3\)s7
Cisco>>Ios >> Version 15.5\(3\)s8
Cisco>>Ios >> Version 15.5\(3\)s9
Cisco>>Ios >> Version 15.5\(3\)s9a
Cisco>>Ios >> Version 15.5\(3\)s10
Cisco>>Ios >> Version 15.5\(3\)s10a
Cisco>>Ios >> Version 15.6\(3\)m2
Cisco>>Ios >> Version 15.6\(3\)m2a
Cisco>>Ios >> Version 15.6\(3\)m3
Cisco>>Ios >> Version 15.6\(3\)m3a
Cisco>>Ios >> Version 15.6\(3\)m4
Cisco>>Ios >> Version 15.6\(3\)m5
Cisco>>Ios >> Version 15.6\(3\)m6
Cisco>>Ios >> Version 15.6\(3\)m6a
Cisco>>Ios >> Version 15.6\(3\)m6b
Cisco>>Ios >> Version 15.6\(3\)m7
Cisco>>Ios >> Version 15.6\(3\)m8
Cisco>>Ios >> Version 15.6\(3\)m9
Cisco>>Ios >> Version 15.7\(3\)m
Cisco>>Ios >> Version 15.7\(3\)m0a
Cisco>>Ios >> Version 15.7\(3\)m1
Cisco>>Ios >> Version 15.7\(3\)m2
Cisco>>Ios >> Version 15.7\(3\)m3
Cisco>>Ios >> Version 15.7\(3\)m4
Cisco>>Ios >> Version 15.7\(3\)m4a
Cisco>>Ios >> Version 15.7\(3\)m4b
Cisco>>Ios >> Version 15.7\(3\)m5
Cisco>>Ios >> Version 15.7\(3\)m6
Cisco>>Ios >> Version 15.7\(3\)m7
Cisco>>Ios >> Version 15.8\(3\)m
Cisco>>Ios >> Version 15.8\(3\)m0a
Cisco>>Ios >> Version 15.8\(3\)m0b
Cisco>>Ios >> Version 15.8\(3\)m1
Cisco>>Ios >> Version 15.8\(3\)m1a
Cisco>>Ios >> Version 15.8\(3\)m2
Cisco>>Ios >> Version 15.8\(3\)m2a
Cisco>>Ios >> Version 15.8\(3\)m3
Cisco>>Ios >> Version 15.8\(3\)m3a
Cisco>>Ios >> Version 15.8\(3\)m3b
Cisco>>Ios >> Version 15.8\(3\)m4
Cisco>>Ios >> Version 15.8\(3\)m5
Cisco>>Ios >> Version 15.9\(3\)m
Cisco>>Ios >> Version 15.9\(3\)m0a
Cisco>>Ios >> Version 15.9\(3\)m1
Cisco>>Ios >> Version 15.9\(3\)m2
Cisco>>Ios >> Version 15.9\(3\)m2a
Cisco>>Ios_xe >> Version 3.6.6e
Cisco>>Ios_xe >> Version 3.6.7ae
Cisco>>Ios_xe >> Version 3.6.7be
Cisco>>Ios_xe >> Version 3.6.7e
Cisco>>Ios_xe >> Version 3.6.8e
Cisco>>Ios_xe >> Version 3.6.9ae
Cisco>>Ios_xe >> Version 3.6.9e
Cisco>>Ios_xe >> Version 3.6.10e
Cisco>>Ios_xe >> Version 3.7.5e
Cisco>>Ios_xe >> Version 3.8.4e
Cisco>>Ios_xe >> Version 3.8.5ae
Cisco>>Ios_xe >> Version 3.8.5e
Cisco>>Ios_xe >> Version 3.8.6e
Cisco>>Ios_xe >> Version 3.8.7e
Cisco>>Ios_xe >> Version 3.8.8e
Cisco>>Ios_xe >> Version 3.8.9e
Cisco>>Ios_xe >> Version 3.8.10e
Cisco>>Ios_xe >> Version 3.9.1e
Cisco>>Ios_xe >> Version 3.9.2be
Cisco>>Ios_xe >> Version 3.9.2e
Cisco>>Ios_xe >> Version 3.10.0ce
Cisco>>Ios_xe >> Version 3.10.0e
Cisco>>Ios_xe >> Version 3.10.1ae
Cisco>>Ios_xe >> Version 3.10.1e
Cisco>>Ios_xe >> Version 3.10.1se
Cisco>>Ios_xe >> Version 3.10.2e
Cisco>>Ios_xe >> Version 3.10.3e
Cisco>>Ios_xe >> Version 3.11.0e
Cisco>>Ios_xe >> Version 3.11.1ae
Cisco>>Ios_xe >> Version 3.11.1e
Cisco>>Ios_xe >> Version 3.11.2ae
Cisco>>Ios_xe >> Version 3.11.2e
Cisco>>Ios_xe >> Version 3.11.3ae
Cisco>>Ios_xe >> Version 3.11.3e
Cisco>>Ios_xe >> Version 3.16.4as
Cisco>>Ios_xe >> Version 3.16.4bs
Cisco>>Ios_xe >> Version 3.16.4cs
Cisco>>Ios_xe >> Version 3.16.4ds
Cisco>>Ios_xe >> Version 3.16.4es
Cisco>>Ios_xe >> Version 3.16.4gs
Cisco>>Ios_xe >> Version 3.16.4s
Cisco>>Ios_xe >> Version 3.16.5as
Cisco>>Ios_xe >> Version 3.16.5bs
Cisco>>Ios_xe >> Version 3.16.5s
Cisco>>Ios_xe >> Version 3.16.6bs
Cisco>>Ios_xe >> Version 3.16.6s
Cisco>>Ios_xe >> Version 3.16.7as
Cisco>>Ios_xe >> Version 3.16.7bs
Cisco>>Ios_xe >> Version 3.16.7s
Cisco>>Ios_xe >> Version 3.16.8s
Cisco>>Ios_xe >> Version 3.16.9s
Cisco>>Ios_xe >> Version 3.16.10as
Cisco>>Ios_xe >> Version 3.16.10s
Cisco>>Ios_xe >> Version 16.3.2
Cisco>>Ios_xe >> Version 16.3.3
Cisco>>Ios_xe >> Version 16.3.4
Cisco>>Ios_xe >> Version 16.3.5
Cisco>>Ios_xe >> Version 16.3.5b
Cisco>>Ios_xe >> Version 16.3.6
Cisco>>Ios_xe >> Version 16.3.7
Cisco>>Ios_xe >> Version 16.3.8
Cisco>>Ios_xe >> Version 16.3.9
Cisco>>Ios_xe >> Version 16.3.10
Cisco>>Ios_xe >> Version 16.3.11
Cisco>>Ios_xe >> Version 16.4.1
Cisco>>Ios_xe >> Version 16.4.2
Cisco>>Ios_xe >> Version 16.4.3
Cisco>>Ios_xe >> Version 16.5.1
Cisco>>Ios_xe >> Version 16.5.1a
Cisco>>Ios_xe >> Version 16.5.1b
Cisco>>Ios_xe >> Version 16.5.2
Cisco>>Ios_xe >> Version 16.5.3
Cisco>>Ios_xe >> Version 16.6.1
Cisco>>Ios_xe >> Version 16.6.2
Cisco>>Ios_xe >> Version 16.6.3
Cisco>>Ios_xe >> Version 16.6.4
Cisco>>Ios_xe >> Version 16.6.4a
Cisco>>Ios_xe >> Version 16.6.4s
Cisco>>Ios_xe >> Version 16.6.5
Cisco>>Ios_xe >> Version 16.6.5a
Cisco>>Ios_xe >> Version 16.6.5b
Cisco>>Ios_xe >> Version 16.6.6
Cisco>>Ios_xe >> Version 16.6.7
Cisco>>Ios_xe >> Version 16.6.7a
Cisco>>Ios_xe >> Version 16.6.8
Cisco>>Ios_xe >> Version 16.7.1
Cisco>>Ios_xe >> Version 16.7.1a
Cisco>>Ios_xe >> Version 16.7.1b
Cisco>>Ios_xe >> Version 16.7.2
Cisco>>Ios_xe >> Version 16.7.3
Cisco>>Ios_xe >> Version 16.7.4
Cisco>>Ios_xe >> Version 16.8.1
Cisco>>Ios_xe >> Version 16.8.1a
Cisco>>Ios_xe >> Version 16.8.1b
Cisco>>Ios_xe >> Version 16.8.1c
Cisco>>Ios_xe >> Version 16.8.1d
Cisco>>Ios_xe >> Version 16.8.1e
Cisco>>Ios_xe >> Version 16.8.1s
Cisco>>Ios_xe >> Version 16.8.2
Cisco>>Ios_xe >> Version 16.8.3
Cisco>>Ios_xe >> Version 16.9.1
Cisco>>Ios_xe >> Version 16.9.1a
Cisco>>Ios_xe >> Version 16.9.1b
Cisco>>Ios_xe >> Version 16.9.1c
Cisco>>Ios_xe >> Version 16.9.1d
Cisco>>Ios_xe >> Version 16.9.1s
Cisco>>Ios_xe >> Version 16.9.2
Cisco>>Ios_xe >> Version 16.9.2a
Cisco>>Ios_xe >> Version 16.9.2s
Cisco>>Ios_xe >> Version 16.9.3
Cisco>>Ios_xe >> Version 16.9.3a
Cisco>>Ios_xe >> Version 16.9.3h
Cisco>>Ios_xe >> Version 16.9.3s
Cisco>>Ios_xe >> Version 16.9.4
Cisco>>Ios_xe >> Version 16.9.4c
Cisco>>Ios_xe >> Version 16.9.5
Cisco>>Ios_xe >> Version 16.9.5f
Cisco>>Ios_xe >> Version 16.9.6
Cisco>>Ios_xe >> Version 16.10.1
Cisco>>Ios_xe >> Version 16.10.1a
Cisco>>Ios_xe >> Version 16.10.1b
Cisco>>Ios_xe >> Version 16.10.1c
Cisco>>Ios_xe >> Version 16.10.1d
Cisco>>Ios_xe >> Version 16.10.1e
Cisco>>Ios_xe >> Version 16.10.1f
Cisco>>Ios_xe >> Version 16.10.1g
Cisco>>Ios_xe >> Version 16.10.1s
Cisco>>Ios_xe >> Version 16.10.2
Cisco>>Ios_xe >> Version 16.10.3
Cisco>>Ios_xe >> Version 16.11.1
Cisco>>Ios_xe >> Version 16.11.1a
Cisco>>Ios_xe >> Version 16.11.1b
Cisco>>Ios_xe >> Version 16.11.1c
Cisco>>Ios_xe >> Version 16.11.1s
Cisco>>Ios_xe >> Version 16.11.2
Cisco>>Ios_xe >> Version 16.12.1
Cisco>>Ios_xe >> Version 16.12.1a
Cisco>>Ios_xe >> Version 16.12.1c
Cisco>>Ios_xe >> Version 16.12.1s
Cisco>>Ios_xe >> Version 16.12.1t
Cisco>>Ios_xe >> Version 16.12.1w
Cisco>>Ios_xe >> Version 16.12.1x
Cisco>>Ios_xe >> Version 16.12.1y
Cisco>>Ios_xe >> Version 16.12.1z
Cisco>>Ios_xe >> Version 16.12.2
Cisco>>Ios_xe >> Version 16.12.2a
Cisco>>Ios_xe >> Version 16.12.2s
Cisco>>Ios_xe >> Version 16.12.2t
Cisco>>Ios_xe >> Version 16.12.3
Cisco>>Ios_xe >> Version 16.12.3a
Cisco>>Ios_xe >> Version 16.12.3s
Cisco>>Ios_xe >> Version 16.12.4
Cisco>>Ios_xe >> Version 16.12.4a
Cisco>>Ios_xe >> Version 17.1.1
Cisco>>Ios_xe >> Version 17.1.1a
Cisco>>Ios_xe >> Version 17.1.1s
Cisco>>Ios_xe >> Version 17.1.1t
Cisco>>Ios_xe >> Version 17.1.2
Cisco>>Ios_xe >> Version 17.2.1
Cisco>>Ios_xe >> Version 17.2.1a
Cisco>>Ios_xe >> Version 17.2.1r
Cisco>>Ios_xe >> Version 17.2.1v
Cisco>>Ios_xe >> Version 17.2.2
Cisco>>Ios_xe >> Version 17.3.1
Cisco>>Ios_xe >> Version 17.3.1a
Cisco>>Ios_xe >> Version 17.3.1w
Cisco>>Ios_xe >> Version 17.3.2
Cisco>>Ios_xe >> Version 17.3.2a
参考資料
Tags : vendor-advisory, x_refsource_CISCO
