CiscoCVELIST:CVE-2023-20108CVE-2023-20108
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
46.4%
A vulnerability in the XCP Authentication Service of the Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to cause a temporary service outage for all Cisco Unified CM IM&P users who are attempting to authenticate to the service, resulting in a denial of service (DoS) condition.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted login message to the affected device. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing new users from successfully authenticating. Exploitation of this vulnerability does not impact Cisco Unified CM IM&P users who were authenticated prior to an attack.
CNA Affected
[
{
"vendor": "Cisco",
"product": "Cisco Unified Communications Manager IM and Presence Service",
"versions": [
{
"version": "10.5(1)",
"status": "affected"
},
{
"version": "10.5(2)",
"status": "affected"
},
{
"version": "10.5(2a)",
"status": "affected"
},
{
"version": "10.5(2b)",
"status": "affected"
},
{
"version": "10.5(2)SU3",
"status": "affected"
},
{
"version": "10.5(2)SU2a",
"status": "affected"
},
{
"version": "10.5(2)SU4a",
"status": "affected"
},
{
"version": "10.5(2)SU4",
"status": "affected"
},
{
"version": "10.5(1)SU3",
"status": "affected"
},
{
"version": "10.5(1)SU1",
"status": "affected"
},
{
"version": "10.5(2)SU1",
"status": "affected"
},
{
"version": "10.5(2)SU2",
"status": "affected"
},
{
"version": "10.5(1)SU2",
"status": "affected"
},
{
"version": "11.5(1)",
"status": "affected"
},
{
"version": "11.5(1)SU1",
"status": "affected"
},
{
"version": "11.5(1)SU2",
"status": "affected"
},
{
"version": "11.5(1)SU3",
"status": "affected"
},
{
"version": "11.5(1)SU3a",
"status": "affected"
},
{
"version": "11.5(1)SU4",
"status": "affected"
},
{
"version": "11.5(1)SU5",
"status": "affected"
},
{
"version": "11.5(1)SU5a",
"status": "affected"
},
{
"version": "11.5(1)SU6",
"status": "affected"
},
{
"version": "11.5(1)SU7",
"status": "affected"
},
{
"version": "11.5(1)SU8",
"status": "affected"
},
{
"version": "11.5(1)SU9",
"status": "affected"
},
{
"version": "11.5(1)SU10",
"status": "affected"
},
{
"version": "11.5(1)SU11",
"status": "affected"
},
{
"version": "11.0(1)",
"status": "affected"
},
{
"version": "11.0(1)SU1",
"status": "affected"
},
{
"version": "12.5(1)",
"status": "affected"
},
{
"version": "12.5(1)SU1",
"status": "affected"
},
{
"version": "12.5(1)SU2",
"status": "affected"
},
{
"version": "12.5(1)SU3",
"status": "affected"
},
{
"version": "12.5(1)SU4",
"status": "affected"
},
{
"version": "12.5(1)SU5",
"status": "affected"
},
{
"version": "12.5(1)SU6",
"status": "affected"
},
{
"version": "14",
"status": "affected"
},
{
"version": "14SU1",
"status": "affected"
},
{
"version": "14SU2",
"status": "affected"
},
{
"version": "14SU2a",
"status": "affected"
},
{
"version": "10.0(1)",
"status": "affected"
},
{
"version": "10.0(1)SU1",
"status": "affected"
},
{
"version": "10.0(1)SU2",
"status": "affected"
}
]
}
]Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
46.4%