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 obtain read and delete access to sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of the HTTP URL. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences. An exploit could allow the attacker to view or delete arbitrary files on the targeted system. When the device is reloaded after exploitation of this vulnerability, any files that were deleted are restored. The attacker can only view and delete files within the web services file system. This file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability can not be used to obtain access to ASA or FTD system files or underlying operating system (OS) files. Reloading the affected device will restore all files within the web services file system.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Threat Defense | >= 6.2.3, < 6.2.3.16 |
| Cisco | Asa 5505 Firmware | 9.6\(4\) |
| Cisco | Asa 5505 | - |
| Cisco | Asa 5510 Firmware | 9.6\(4\) |
| Cisco | Asa 5510 | - |
| Cisco | Asa 5512-X Firmware | 9.6\(4\) |
| Cisco | Asa 5512-X | - |
| Cisco | Asa 5515-X Firmware | 9.6\(4\) |
| Cisco | Asa 5515-X | - |
| Cisco | Asa 5520 Firmware | 9.6\(4\) |
| Cisco | Asa 5520 | - |
| Cisco | Asa 5525-X Firmware | 9.6\(4\) |
| Cisco | Asa 5525-X | - |
| Cisco | Asa 5540 Firmware | 9.6\(4\) |
| Cisco | Asa 5540 | - |
| Cisco | Asa 5545-X Firmware | 9.6\(4\) |
| Cisco | Asa 5545-X | - |
| Cisco | Asa 5550 Firmware | 9.6\(4\) |
| Cisco | Asa 5550 | - |
| Cisco | Asa 5555-X Firmware | 9.6\(4\) |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/158648/Cisco-Adaptive-Security-Appliance-SoExploitThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aVendor Advisory
- http://packetstormsecurity.com/files/158648/Cisco-Adaptive-Security-Appliance-SoExploitThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aVendor Advisory
FAQ
What is CVE-2020-3187?
CVE-2020-3187 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 c...
How severe is CVE-2020-3187?
CVE-2020-3187 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-3187?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Firepower Threat Defense, Cisco Asa 5505 Firmware, Cisco Asa 5505, Cisco Asa 5510 Firmware, Cisco Asa 5510.