Record summary

CVE-2020-3580 has a selected CVSS score of 6.1 (medium); EIP currently links 4 repository PoCs and 1 Nuclei template. CISA lists CVE-2020-3580 in KEV and reports its use in known ransomware campaigns.

Description

Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.

Description source: CVE List

Exploitation context

Known exploitation

CISA KEV
Listed · Nov 3, 2021 · CISA
VulnCheck KEV
Listed · Nov 3, 2021 · VulnCheck
Reported exploitation
Observed · VulnCheck
Ransomware use
Observed · CISA

Available material

Repository PoCs
4
Nuclei templates
1

CISA SSVC decision

ExploitationActive
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Nov 8, 2024 · Source: CVE List

Affected products and versions

2
ProductSourceVersion rangeStatus

Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)

Browse Cisco / Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
CISAVersion data not supplied

Cisco Adaptive Security Appliance (ASA) Software

Browse Cisco / Cisco Adaptive Security Appliance (ASA) Software
CVE ListVersion range not suppliedaffected

Proofs of concept

4

Repository PoCs

GitHubHudi233/CVE-2020-3580Repository PoCby Hudi233Stars: 9Not analyzed1 file

1.0 KiB

GitHub

PoC details
GitHubadarshvs/CVE-2020-3580Repository PoCby adarshvsStars: 19Not analyzed3 files

2.8 KiB

GitHub

PoC details
GitHubcruxN3T/CVE-2020-3580Repository PoCby cruxN3TStars: 0Not analyzed21 files

69.1 KiB

GitHub

PoC details
GitHubcatatonicprime/CVE-2020-3580Repository PoCby catatonicprimeStars: 2Not analyzed3 files

2.7 KiB

GitHub

PoC details

Nuclei templates

1
ProjectDiscoveryMEDIUMCisco ASA/FTD Software - Cross-Site ScriptingCVSS 6.1

Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software are vulnerable to cross-site scripting and could allow an unauthenticated, remote attacker to conduct attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the reference links.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of a targeted user's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.

Remediation

Apply the latest security patches or updates provided by Cisco to mitigate this vulnerability.

WeaknessesCWE-79
Authorspikpikcu
Template tagscvecve2020xssciscokevvkevvuln
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CPE: cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*

Source: ProjectDiscovery

References

3