CVE-2020-3585

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Summary

CVECVE-2020-3585
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-10-21 19:15:00 UTC
Updated2023-11-07 03:22:00 UTC
DescriptionA vulnerability in the TLS handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000 Series firewalls could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper implementation of countermeasures against the Bleichenbacher attack for cipher suites that rely on RSA for key exchange. An attacker could exploit this vulnerability by sending crafted TLS messages to the device, which would act as an oracle and allow the attacker to carry out a chosen-ciphertext attack. A successful exploit could allow the attacker to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions to the affected device. To exploit this vulnerability, an attacker must be able to perform both of the following actions: Capture TLS traffic that is in transit between clients and the affected device Actively establish a considerable number of TLS connections to the affected device

Risk And Classification

Problem Types: CWE-203

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Adaptive Security Appliance Software All All All All
Operating System Cisco Adaptive Security Appliance Software All All All All
Hardware Cisco Firepower 1000 - All All All
Hardware Cisco Firepower 1000 - All All All
Hardware Cisco Firepower 1010 - All All All
Hardware Cisco Firepower 1010 - All All All
Hardware Cisco Firepower 1120 - All All All
Hardware Cisco Firepower 1120 - All All All
Hardware Cisco Firepower 1140 - All All All
Hardware Cisco Firepower 1140 - All All All
Hardware Cisco Firepower 1150 - All All All
Hardware Cisco Firepower 1150 - All All All
Operating System Cisco Firepower Threat Defense All All All All
Operating System Cisco Firepower Threat Defense All All All All

References

ReferenceSourceLinkTags
Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability CISCO tools.cisco.com Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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