ArchLinux: 201807-13: networkmanager-vpnc: privilege escalation
Summary
When initiating a VPNC connection, Network Manager spawns a new vpnc process and passes the configuration via STDIN. By injecting a \n character into a configuration parameter, an attacker can coerce Network Manager to set the Password helper option to an attacker controlled executable file.
Resolution
Upgrade to 1.2.6-1.
# pacman -Syu "networkmanager-vpnc>=1.2.6-1"
The problem has been fixed upstream in version 1.2.6.
References
https://gitlab.gnome.org/GNOME/NetworkManager-vpnc/-/commit/07ac18a32b4 https://download.gnome.org/sources/NetworkManager-vpnc/1.2/NetworkManager-vpnc-1.2.6.news https://marc.info/?l=oss-security&m=153207963021874 https://security.archlinux.org/CVE-2018-10900
![Dist Arch](/images/distros/dist-arch.png)
Workaround
None.