4.4
CVSSv2

CVE-2020-3556

Published: 06/11/2020 Updated: 07/11/2023
CVSS v2 Base Score: 4.4 | Impact Score: 6.4 | Exploitability Score: 3.4
CVSS v3 Base Score: 7.3 | Impact Score: 5.9 | Exploitability Score: 1.3
VMScore: 392
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client Software could allow an authenticated, local malicious user to cause a targeted AnyConnect user to execute a malicious script. The vulnerability is due to a lack of authentication to the IPC listener. An attacker could exploit this vulnerability by sending crafted IPC messages to the AnyConnect client IPC listener. A successful exploit could allow an malicious user to cause the targeted AnyConnect user to execute a script. This script would execute with the privileges of the targeted AnyConnect user. In order to successfully exploit this vulnerability, there must be an ongoing AnyConnect session by the targeted user at the time of the attack. To exploit this vulnerability, the attacker would also need valid user credentials on the system upon which the AnyConnect client is being run. Cisco has not released software updates that address this vulnerability.

Vulnerability Trend

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cisco anyconnect secure mobility client 4.9\\(3052\\)

cisco anyconnect secure mobility client 98.145\\(86\\)

Vendor Advisories

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client Software could allow an authenticated, local attacker to cause a targeted AnyConnect user to execute a malicious script The vulnerability is due to a lack of authentication to the IPC listener An attacker could exploit this vulnerability by ...