CVE-2020-3259: Cisco ASA and FTD Information Disclosure Vulnerability
Affects Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)Source CISA KEV
No CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 02/15/2024
- KEV deadline
- 03/07/2024
- Ransomware
- Used in ransomware campaigns
- EPSS
- 71.5% chance of exploitation in 30 days – higher than 99% of CVEs
What to do
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an information disclosure vulnerability. An attacker could retrieve memory contents on an affected device, which could lead to the disclosure of confidential information due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. This vulnerability affects only specific AnyConnect and WebVPN configurations.