CVE-2023-20178High· 7.8▾ MidnightPoC availableA vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges t…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 42.9 · likelihood 1.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
5.4%
1 GitHub repo (last check)
A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established.
This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.
anyconnect_secure_mobility_client < 4.10.07061secure_client < 5.0.02075Upgrade past the affected range:
anyconnect_secure_mobility_client 4.10.07061secure_client 5.0.02075Connected by shared product, vendor, weakness, or advisory.
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