Deserialization of untrusted data in Password Vault Web Access - CVE-2018-9843
Published: April 10, 2018 / Updated: June 17, 2021
Vulnerability identifier: #VU11665
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2018-9843
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: CyberArk
Affected software:
Password Vault Web Access
Password Vault Web Access
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to use of authentication tokens which consist of serialized .NET objects. A remote attacker can submit specially crafted tokens, trigger deserialization of untrusted data and execute arbitrary code with privileges of the web application.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to use of authentication tokens which consist of serialized .NET objects. A remote attacker can submit specially crafted tokens, trigger deserialization of untrusted data and execute arbitrary code with privileges of the web application.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2018-9843
Update to version 9.9.5, 9.10.1, 10.2.