CVE-2020-3571
Vulnerability Scoring
Attack Complexity Details
- Attack Complexity: Low Impact
- Attack Vector: NETWORK
- Privileges Required: None
- Scope: CHANGED
- User Interaction: NONE
CIA Impact Definition
- Confidentiality:
- Integrity:
- Availability: HIGH IMPACT
CVE-2020-3571 Vulnerability Summary
A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload.
Access Complexity Graph for CVE-2020-3571
Impact Analysis for CVE-2020-3571
CVE-2020-3571: Detailed Information and External References
EPSS
0.00160
EPSS %
0.53502
References
0.00160
CWE
CWE-400
CAPEC
0.00160
- XML Ping of the Death: An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
- Sustained Client Engagement: An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.
- Regular Expression Exponential Blowup: An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.
Vulnerable Configurations
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cpe:2.3:a:cisco:firepower_threat_defense:6.3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.3.0:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.1:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.2:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.3:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.4:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.5:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.1:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.2:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.3:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.4:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.5:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.6:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.7:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.8:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.9:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.9:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.5.0:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.1:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.2:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.3:*:*:*:*:*:*:*
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cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.4:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*
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cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*
CVSS3 Source
nvd@nist.gov
CVSS3 Type
Primary
CVSS3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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