Vulnerability Monitor

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CVE-2020-3187

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.

Published

2020-05-06T17:15:12.087

Last Modified

2024-11-21T05:30:30.407

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.1 (CRITICAL)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-22
  • Type: Primary
    CWE-22
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense < 6.2.3.16 Yes
Application cisco firepower_threat_defense < 6.3.0.6 Yes
Application cisco firepower_threat_defense < 6.4.0.8 Yes
Application cisco firepower_threat_defense < 6.5.0.4 Yes
Operating System cisco asa_5505_firmware 9.6\(4\) Yes
Hardware cisco asa_5505 - No
Operating System cisco asa_5510_firmware 9.6\(4\) Yes
Hardware cisco asa_5510 - No
Operating System cisco asa_5512-x_firmware 9.6\(4\) Yes
Hardware cisco asa_5512-x - No
Operating System cisco asa_5515-x_firmware 9.6\(4\) Yes
Hardware cisco asa_5515-x - No
Operating System cisco asa_5520_firmware 9.6\(4\) Yes
Hardware cisco asa_5520 - No
Operating System cisco asa_5525-x_firmware 9.6\(4\) Yes
Hardware cisco asa_5525-x - No
Operating System cisco asa_5540_firmware 9.6\(4\) Yes
Hardware cisco asa_5540 - No
Operating System cisco asa_5545-x_firmware 9.6\(4\) Yes
Hardware cisco asa_5545-x - No
Operating System cisco asa_5550_firmware 9.6\(4\) Yes
Hardware cisco asa_5550 - No
Operating System cisco asa_5555-x_firmware 9.6\(4\) Yes
Hardware cisco asa_5555-x - No
Operating System cisco asa_5580_firmware 9.6\(4\) Yes
Hardware cisco asa_5580 - No
Operating System cisco asa_5585-x_firmware 9.6\(4\) Yes
Hardware cisco asa_5585-x - No
Operating System cisco adaptive_security_appliance_software < 9.6.4.40 Yes
Operating System cisco adaptive_security_appliance_software < 9.8.4.15 Yes
Operating System cisco adaptive_security_appliance_software < 9.9.2.66 Yes
Operating System cisco adaptive_security_appliance_software < 9.10.1.37 Yes
Operating System cisco adaptive_security_appliance_software < 9.12.3.2 Yes
Operating System cisco adaptive_security_appliance_software < 9.13.1.7 Yes
References