⚠ Actively exploited in ransomware campaigns
This vulnerability is on the CISA Known Exploited Vulnerabilities list and has been used in known ransomware attacks. CISA required action: Apply updates per vendor instructions.. Due date: 2022-05-03.

CVE-2020-3580Cross-site Scripting in Cisco Adaptive Security Appliance Software

CWE-79Cross-site Scripting18 documents10 sources
Severity
6.1MEDIUMNVD
EPSS
93.3%
top 0.19%
CISA KEV
KEVRansomware
Added 2021-11-03
Due 2022-05-03
Exploit
Exploited in wild
Active exploitation observed
Timeline
PublishedOct 21
KEV addedNov 3
KEV dueMay 3
Latest updateAug 23
CISA Required Action: Apply updates per vendor instructions.

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages3 packages

Patches

🔴Vulnerability Details

3
GHSA
GHSA-rr9h-g433-576p: Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) So2022-05-24
CVEList
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities2020-10-21
VulnCheck
Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability2020

💥Exploits & PoCs

1
Nuclei
Cisco ASA/FTD Software - Cross-Site Scripting

🔍Detection Rules

1
Suricata
ET EXPLOIT Cisco ASA XSS Attempt (CVE-2020-3580)2021-09-21

📋Vendor Advisories

2
CISA
Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability2021-11-03
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities2020-10-21

💬Community

9
HackerOne
Reflected Cross Site Scripting Cisco ASA on myvpn.mtncameroon.net CVE-2020-35802024-08-23
HackerOne
reflected xss [CVE-2020-3580]2024-05-03
HackerOne
XSS DUE TO CVE-2020-35802022-09-06
HackerOne
███████ - XSS - CVE-2020-35802021-09-29
HackerOne
XSS due to CVE-2020-3580 [███]2021-09-09
CVE-2020-3580 — Cross-site Scripting in Cisco | cvebase