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CVE-2020-3187

critical · 9.1

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates

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.

9.1
CVSS
96.6%
EPSS (exploit prob.)
100th
EPSS percentile
2020-05-06
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-22

Affected products

VendorProductAffected versions
ciscosecure_firewall_threat_defense>= 6.2.3, < 6.2.3.16
ciscosecure_firewall_threat_defense>= 6.3.0, < 6.3.0.6
ciscosecure_firewall_threat_defense>= 6.4.0, < 6.4.0.8
ciscosecure_firewall_threat_defense>= 6.5.0, < 6.5.0.4
ciscoasa_5505_firmware9.6(4)
ciscoasa_5505all versions
ciscoasa_5510_firmware9.6(4)
ciscoasa_5510all versions
ciscoasa_5512-x_firmware9.6(4)
ciscoasa_5512-xall versions
ciscoasa_5515-x_firmware9.6(4)
ciscoasa_5515-xall versions
ciscoasa_5520_firmware9.6(4)
ciscoasa_5520all versions
ciscoasa_5525-x_firmware9.6(4)
ciscoasa_5525-xall versions
ciscoasa_5540_firmware9.6(4)
ciscoasa_5540all versions
ciscoasa_5545-x_firmware9.6(4)
ciscoasa_5545-xall versions
ciscoasa_5550_firmware9.6(4)
ciscoasa_5550all versions
ciscoasa_5555-x_firmware9.6(4)
ciscoasa_5555-xall versions
ciscoasa_5580_firmware9.6(4)
ciscoasa_5580all versions
ciscoasa_5585-x_firmware9.6(4)
ciscoasa_5585-xall versions
ciscoadaptive_security_appliance_software>= 9.6, < 9.6.4.40
ciscoadaptive_security_appliance_software>= 9.8, < 9.8.4.15
ciscoadaptive_security_appliance_software>= 9.9, < 9.9.2.66
ciscoadaptive_security_appliance_software>= 9.10, < 9.10.1.37
ciscoadaptive_security_appliance_software>= 9.12, < 9.12.3.2
ciscoadaptive_security_appliance_software>= 9.13, < 9.13.1.7

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2020-3187