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CVE-2020-3452

high · 7.5Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2021-11-03Remediation due 2022-05-03

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 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.

7.5
CVSS
100.0%
EPSS (exploit prob.)
100th
EPSS percentile
2020-07-22
Published

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

Weaknesses

CWE-20CWE-22

Affected products

VendorProductAffected versions
ciscoadaptive_security_appliance_software>= 9.6, < 9.6.4.42
ciscoadaptive_security_appliance_software>= 9.8, < 9.8.4.20
ciscoadaptive_security_appliance_software>= 9.9, < 9.9.2.74
ciscoadaptive_security_appliance_software>= 9.10, < 9.10.1.42
ciscoadaptive_security_appliance_software>= 9.12, < 9.12.3.12
ciscoadaptive_security_appliance_software>= 9.13, < 9.13.1.10
ciscoadaptive_security_appliance_software>= 9.14, < 9.14.1.10
ciscoasa_5505all versions
ciscoasa_5510all versions
ciscoasa_5512-xall versions
ciscoasa_5515-xall versions
ciscoasa_5520all versions
ciscoasa_5525-xall versions
ciscoasa_5540all versions
ciscoasa_5545-xall versions
ciscoasa_5550all versions
ciscoasa_5555-xall versions
ciscoasa_5580all versions
ciscoasa_5585-xall 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, < 6.4.0.10
ciscosecure_firewall_threat_defense>= 6.5.0, < 6.5.0.5
ciscosecure_firewall_threat_defense>= 6.6.0, < 6.6.0.1

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

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2020-3452