CVE-2020-3259

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Summary

CVECVE-2020-3259
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-05-06 17:15:00 UTC
Updated2023-08-16 16:17:00 UTC
DescriptionA 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 retrieve memory contents on an affected device, which could lead to the disclosure of confidential information. The vulnerability is due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. An attacker could exploit this vulnerability by sending a crafted GET request to the web services interface. A successful exploit could allow the attacker to retrieve memory contents, which could lead to the disclosure of confidential information. Note: This vulnerability affects only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.

Risk And Classification

EPSS: 0.717890000 probability, percentile 0.993580000 (date 2026-07-21)

CISA KEV: Listed on 2024-02-15; due 2024-03-07; ransomware use Known

Problem Types: NVD-CWE-noinfo

CISA Known Exploited Vulnerability

VendorCisco
ProductAdaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
NameCisco ASA and FTD Information Disclosure Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Noteshttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB; https://nvd.nist.gov/vuln/detail/CVE-2020-3259

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Adaptive Security Appliance All All All All
Application Cisco Adaptive Security Appliance All All All All
Operating System Cisco Adaptive Security Appliance Software All All All All
Application Cisco Firepower Threat Defense All All All All
Application Cisco Firepower Threat Defense All All All All

References

ReferenceSourceLinkTags
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

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