CVE-2020-3452— Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability
Quick assessment
Affected
Cisco Cisco Adaptive Security Appliance (ASA) Software
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco Adaptive Security Appliances Software（ASA Software）是美国思科（Cisco）公司的一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 Cisco Adaptive Security Appliances Software和FTD Software中存在路径遍历漏洞，该漏洞源于受影响设备没有正确验证HTTP请求中的URL。远程攻击者可通过将包含目录遍历字符序列的特制HTTP请求发送到受影响的设备利用该漏洞在目标设备上查
Public Exploits 4
Nuclei · 1
CVE-2020-3452.yaml [template]
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-3452
Vulnerability Information
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Vulnerability Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability 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 directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Adaptive Security Appliances Software 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Adaptive Security Appliances Software（ASA Software）是美国思科（Cisco）公司的一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 Cisco Adaptive Security Appliances Software和FTD Software中存在路径遍历漏洞，该漏洞源于受影响设备没有正确验证HTTP请求中的URL。远程攻击者可通过将包含目录遍历字符序列的特制HTTP请求发送到受影响的设备利用该漏洞在目标设备上查
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | unspecified ~ 9.6.4.42 | - |
|
II. Public POCs for CVE-2020-3452
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/XDev05/CVE-2020-3452-PoC | POC Details |
| 2 | unauth file read in cisco asa & firepower. | https://github.com/Loneyers/cve-2020-3452 | POC Details |
| 3 | CVE-2020-3452 Cisco ASA Scanner -unauth Path Traversal Check | https://github.com/PR3R00T/CVE-2020-3452-Cisco-Scanner | POC Details |
| 4 | None | https://github.com/mr-r3b00t/CVE-2020-3452 | POC Details |
| 5 | Little, stupid python validator(?) for CVE-2020-3452 on CISCO devices. | https://github.com/foulenzer/CVE-2020-3452 | POC Details |
| 6 | CVE-2020-3452 : Cisco ASA and FTD Unauthorized Remote File Reading Nmap NSE Script | https://github.com/Gh0st0ne/http-vuln-cve2020-3452.nse | POC Details |
| 7 | CVE-2020-3452 exploit | https://github.com/0x5ECF4ULT/CVE-2020-3452 | POC Details |
| 8 | CVE-2020-3452 - directory traversal in Cisco ASA and Cisco Firepower Threat Defense | https://github.com/paran0id34/CVE-2020-3452 | POC Details |
| 9 | [CVE-2020-3452] Cisco Adaptive Security Appliance (ASA) & Cisco Firepower Threat Defense (FTD) Web Service Read-Only Directory Traversal | https://github.com/murataydemir/CVE-2020-3452 | POC Details |
| 10 | (CVE-2020-3452) Cisco Adaptive Security Appliance Software - Local File Inclusion Vuln Test sciript | https://github.com/ludy-dev/Cisco-ASA-LFI | POC Details |
| 11 | Just basic scanner abusing CVE-2020-3452 to enumerate the standard files accessible in the Web Directory of the CISCO ASA applicances. | https://github.com/3ndG4me/CVE-2020-3452-Exploit | POC Details |
| 12 | CVE-2020-3452 | https://github.com/grim3/CVE-2020-3452 | POC Details |
| 13 | None | https://github.com/cygenta/CVE-2020-3452 | POC Details |
| 14 | CISCO CVE-2020-3452 Scanner & Exploiter | https://github.com/darklotuskdb/CISCO-CVE-2020-3452-Scanner-Exploiter | POC Details |
| 15 | CVE-2020-3452 - Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) traversal | https://github.com/fuzzlove/Cisco-ASA-FTD-Web-Services-Traversal | POC Details |
| 16 | simple bash script of CVE-2020-3452 Cisco ASA / Firepower Read-Only Path Traversal Vulnerability checker | https://github.com/faisalfs10x/Cisco-CVE-2020-3452-shodan-scanner | POC Details |
| 17 | None | https://github.com/sujaygr8/CVE-2020-3452 | POC Details |
| 18 | Test vulnerability of CVE-2020-3452 | https://github.com/Aviksaikat/CVE-2020-3452 | POC Details |
| 19 | None | https://github.com/Veids/CVE-2020-3452_auto | POC Details |
| 20 | Just proof of concept for Cisco CVE-2020-3452. Using external or internal file base. | https://github.com/iveresk/cve-2020-3452 | POC Details |
| 21 | Exploitation Scanner CVE-2020-3452 to enumerate the standard files accessible in the Path Traversal of CISCO ASA/FTD .🔥 | https://github.com/imhunterand/CVE-2020-3452 | POC Details |
| 22 | Cisco Adaptive Security Appliance (ASA)/Firepower Threat Defense (FTD) - Local File Inclusion | https://github.com/Cappricio-Securities/CVE-2020-3452 | POC Details |
| 23 | Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software is vulnerable to local file inclusion due to directory traversal attacks that can read sensitive files on a targeted system because of a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-3452.yaml | POC Details |
| 24 | None | https://github.com/Threekiii/Awesome-POC/blob/master/%E7%BD%91%E7%BB%9C%E8%AE%BE%E5%A4%87%E6%BC%8F%E6%B4%9E/Cisco%20ASA%E8%AE%BE%E5%A4%87%20%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E%20CVE-2020-3452.md | POC Details |
| 25 | None | https://github.com/chaitin/xray-plugins/blob/main/poc/manual/cisco-cve-2020-3452-readfile.yml | POC Details |
| 26 | Proof-of-concept script for CVE-2020-3452 — Cisco ASA/FTD Path Traversal vulnerability. Supports automated extraction of known file targets with a hard limit on successful downloads for safety. Intended for authorized security testing and research purposes only. | https://github.com/abrewer251/CVE-2020-3452_Cisco_ASA_PathTraversal | POC Details |
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Vendor Advisories for CVE-2020-3452 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86 vendor-advisory x_refsource_CISCO
Exploits & Public PoCs for CVE-2020-3452 (3)
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V. Comments for CVE-2020-3452
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