Medium severity · published Oct 21, 2020
CVE-2020-3578
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
6.5
CVSS
1.2%
EPSS
No
On KEV
Description
A 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 bypass a configured access rule and access parts of the WebVPN portal that are supposed to be blocked. The vulnerability is due to insufficient validation of URLs when portal access rules are configured. An attacker could exploit this vulnerability by accessing certain URLs on the affected device.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Adaptive Security Appliance Software · Cisco
before 9.6.4.45; 9.7 before 9.8.4.26; 9.9 before 9.9.2.80; 9.10 before 9.10.1.44; 9.12 before 9.12.4.4; 9.13 before 9.13.1.13; +1 more · source: NVD
FT
Firepower Threat Defense · Cisco
before 6.3.0.6; 6.5.0 before 6.5.0.5; 6.6.0 before 6.6.1 · source: NVD
SF
Secure Firewall Threat Defense · Cisco
6.4.0 before 6.4.0.10 · source: NVD
Affected product
AS
Adaptive Security Appliance Software
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3578
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3578
Patch
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-rule-bypass-P73ABNWQ
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