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[email protected]CVE-2020-3561

HistoryOct 21, 2020 - 7:15 p.m.

CVE-2020-3561

2020-10-2119:15:17

CWE-93

CWE-74

[email protected]

web.nvd.nist.gov

cisco

asa

ftd

cve-2020-3561

vulnerability

crlf injection

http headers

nvd

security

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.1%

JSON

A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites.

Affected configurations

NVD

Node

ciscoadaptive_security_applianceRange<9.6.4.35

ciscofirepower_threat_defenseRange<6.3.0.6

ciscofirepower_threat_defenseRange6.4.0–6.4.0.10

ciscofirepower_threat_defenseRange6.5.0–6.5.0.5

ciscofirepower_threat_defenseRange6.6.0–6.6.1

ciscoadaptive_security_appliance_softwareRange9.8.0–9.8.4.20

ciscoadaptive_security_appliance_softwareRange9.9.0–9.9.2.80

ciscoadaptive_security_appliance_softwareRange9.10.0–9.10.1.43

ciscoadaptive_security_appliance_softwareRange9.12.0–9.12.3.9

ciscoadaptive_security_appliance_softwareRange9.13.0–9.13.1.10

ciscoadaptive_security_appliance_softwareRange9.14.0–9.14.1.10

CPENameOperatorVersion
cisco:adaptive_security_appliancecisco adaptive security appliancelt9.6.4.35
cisco:firepower_threat_defensecisco firepower threat defenselt6.3.0.6
cisco:firepower_threat_defensecisco firepower threat defenselt6.4.0.10
cisco:firepower_threat_defensecisco firepower threat defenselt6.5.0.5
cisco:firepower_threat_defensecisco firepower threat defenselt6.6.1
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.8.4.20
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.9.2.80
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.10.1.43
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.12.3.9
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.13.1.10

CPE	Name	Operator	Version
cisco:adaptive_security_appliance	cisco adaptive security appliance	lt	9.6.4.35
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.3.0.6
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.4.0.10
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.5.0.5
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.6.1
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.8.4.20
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.9.2.80
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.10.1.43
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.12.3.9
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.13.1.10

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CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software ",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-crlf-inj-BX9uRwSn

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.1%

JSON

Related for CVE-2020-3561

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