CVE-2020-3585
"Cisco ASA and FTD RSA Bleichenbacher Attack Chosen-Ciphertext Vulnerability"
Description
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
INFO
Published Date :
Oct. 21, 2020, 7:15 p.m.
Last Modified :
Nov. 7, 2023, 3:22 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2020-3585
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-3585.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tls-bb-2g9uWkP | Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-3585 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-3585 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N -
CPE Deprecation Remap by [email protected]
May. 26, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.14 from (excluding) 9.14.1.30 OR *cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.14 from (excluding) 9.14.1.30 -
CPE Deprecation Remap by [email protected]
May. 26, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (excluding) 9.13.1.13 OR *cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (excluding) 9.13.1.13 -
Initial Analysis by [email protected]
Oct. 30, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tls-bb-2g9uWkP No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tls-bb-2g9uWkP Patch, Vendor Advisory Added CWE NIST CWE-203 Added CPE Configuration AND OR *cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions up to (excluding) 6.4.0.10 *cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.5.0 up to (excluding) 6.5.0.5 *cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.6.0 up to (excluding) 6.6.1 OR cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions up to (excluding) 9.13.1.13 *cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.14 up to (excluding) 9.14.1.30 OR cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-3585 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-3585
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.00%
score
0.48706
percentile