CVE-2023-20264
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.4 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
27.0%
A vulnerability in the implementation of Security Assertion Markup Language (SAML) 2.0 single sign-on (SSO) for remote access VPN in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to intercept the SAML assertion of a user who is authenticating to a remote access VPN session. This vulnerability is due to insufficient validation of the login URL. An attacker could exploit this vulnerability by persuading a user to access a site that is under the control of the attacker, allowing the attacker to modify the login URL. A successful exploit could allow the attacker to intercept a successful SAML assertion and use that assertion to establish a remote access VPN session toward the affected device with the identity and permissions of the hijacked user, resulting in access to the protected network.
Affected configurations
CNA Affected
[
{
"vendor": "Cisco",
"product": "Cisco Adaptive Security Appliance (ASA) Software",
"versions": [
{
"version": "9.18.1",
"status": "affected"
},
{
"version": "9.18.1.3",
"status": "affected"
},
{
"version": "9.18.2",
"status": "affected"
},
{
"version": "9.18.2.5",
"status": "affected"
},
{
"version": "9.18.2.7",
"status": "affected"
},
{
"version": "9.18.2.8",
"status": "affected"
},
{
"version": "9.18.3",
"status": "affected"
},
{
"version": "9.18.3.39",
"status": "affected"
},
{
"version": "9.18.3.46",
"status": "affected"
},
{
"version": "9.19.1.5",
"status": "affected"
},
{
"version": "9.19.1.9",
"status": "affected"
},
{
"version": "9.19.1.12",
"status": "affected"
}
]
},
{
"vendor": "Cisco",
"product": "Cisco Firepower Threat Defense Software",
"versions": [
{
"version": "7.2.4",
"status": "affected"
}
]
}
]Related
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.4 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
27.0%