CVE-2020-3556
Description
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 sending crafted IPC messages to the AnyConnect client IPC listener. A successful exploit could allow an attacker 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.
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2018-0100,CVE-2020-3556 are affected in Any Connect (Microsoft Store) 98.145(86) | Windows |
| Vulnerabilities CVE-2020-3556 are affected in Any Connect (Microsoft Store) 4.9(3052) | Windows |
| Vulnerabilities CVE-2020-3556 are affected in Cisco AnyConnect Secure Mobility Client for Mac 4.9(3052) | Mac |
| Vulnerabilities CVE-2020-3556 are affected in Cisco AnyConnect Secure Mobility Client for Mac 98.145(86) | Mac |
| Vulnerabilities CVE-2020-3556 are affected in Cisco AnyConnect Secure Mobility Client for Mac 98.145(86) | Mac |
| Cisco AnyConnect Secure Mobility Client Arbitrary Code Execution Vulnerability For Cisco AnyConnect Secure Mobility Client | NCM |
| CVE-2020-3556 | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1705981 | Security Update for Cisco AnyConnect Secure Mobility Client 4.3(2034) |
| PATCH-606843 | Cisco AnyConnect Secure Mobility Client for Mac 4.10.08029 |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234