CVE-2020-3585
published 2020-10-21CVE-2020-3585: A vulnerability in the TLS handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower…
PriorityP417low3.7CVSS 3.1
AVNACHPRNUINSUCLINAN
EPSS
1.25%
66.4th percentile
A 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
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | adaptive_security_appliance_software | < 9.13.1.13 | 9.13.1.13 |
| cisco | adaptive_security_appliance_software | >= 9.14 < 9.14.1.30 | 9.14.1.30 |
| cisco | cisco_adaptive_security_appliance_software | — | — |
| cisco | firepower_1000_series_bleichenbacher_attack | — | — |
| cisco | firepower_threat_defense | < 6.4.0.10 | 6.4.0.10 |
| cisco | firepower_threat_defense | >= 6.5.0 < 6.5.0.5 | 6.5.0.5 |
| cisco | firepower_threat_defense | >= 6.6.0 < 6.6.1 | 6.6.1 |
CVSS provenance
nvdv3.13.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
vendor_cisco5.3MEDIUM
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Cisco
Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
vendor_cisco·2020-10-21·CVSS 5.3
CVE-2020-3585 [MEDIUM] CWE-203 Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
A 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 c
Cisco
Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
vendor_cisco·CVSS 3.1
CVE-2020-3585 Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
CVE-2020-3585: Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
A 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
GHSA
GHSA-w7hv-422j-p88g: A vulnerability in the TLS handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Fir
ghsa_unreviewed·2022-05-24
CVE-2020-3585 [MEDIUM] CWE-203 GHSA-w7hv-422j-p88g: A vulnerability in the TLS handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Fir
A 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 vulne
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-10-21
Published