CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
71.6%
A vulnerability in the Intercluster Sync Agent Service on Cisco Unified Presence Server could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition.
The vulnerability is due to a SYN flood. An attacker could exploit this vulnerability by exceeding the tcp max connections parameter.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
To exploit this vulnerability, an attacker must be in a position to send large amounts of SYN packets to the targeted device. In a typical enterprise network, the targeted device may reside on trusted, internal networks behind a firewall, which may reduce the possibility of an external attack.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | unified_presence_server | any | cpe:2.3:a:cisco:unified_presence_server:any:*:*:*:*:*:*:* |