SARA / Free Tools / KEV / CVE-2020-3452

CVE-2020-3452 on CISA KEV

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

CISA KEV — Actively Exploited

Cisco ASA and FTD Read-Only Path Traversal Vulnerability

Vendor / Product
— / Cisco / Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
Added to KEV
2021-11-03
BOD 22-01 due
2022-05-03
Ransomware use
Unknown
CVSS / EPSS
7.5 HIGH · EPSS 94.45%

01What CISA says about this vulnerability

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…

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
CiscoCisco Adaptive Security Appliance (ASA) Softwareunspecified, unspecified, unspecified, unspecified, unspecified, unspecified

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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