The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=2afb4c979f2d1befc3e259a0a7359a8e31a48e55
commit 2afb4c979f2d1befc3e259a0a7359a8e31a48e55 Author: Mark Johnston <[email protected]> AuthorDate: 2026-05-12 14:16:46 +0000 Commit: Mark Johnston <[email protected]> CommitDate: 2026-05-20 19:34:51 +0000 bsdconfig: Make sure that SSID names are properly escaped The f_menu_wpa_scan_results() function returns a list of networks discovered by a scan. The untrusted network names are evaluated in f_dialog_menu_wireless_edit. The quoting applied in f_menu_wpa_scan_results() protects against evaluation of something like "$(whoami)" but one can add single quotes to defeat that. Pass the SSID names through f_shell_escape to work around this. Escape single quotes in f_dialog_wireless_edit() and f_menu_wireless_configs() too for consistency. I note that this module doesn't seem to actually work, see e.g., bugzilla PR 229883. Approved by: so Security: FreeBSD-SA-26:23.bsdinstall Security: CVE-2026-45255 Reported by: Austin Ralls Reviewed by: dteske, des Differential Revision: https://reviews.freebsd.org/D56974 --- usr.sbin/bsdconfig/share/media/wlan.subr | 3 +++ 1 file changed, 3 insertions(+) diff --git a/usr.sbin/bsdconfig/share/media/wlan.subr b/usr.sbin/bsdconfig/share/media/wlan.subr index 5847356d1925..5d271c403b3c 100644 --- a/usr.sbin/bsdconfig/share/media/wlan.subr +++ b/usr.sbin/bsdconfig/share/media/wlan.subr @@ -813,6 +813,7 @@ f_dialog_wireless_edit() [ $nmatches -le ${#DIALOG_MENU_TAGS} ] || break f_substr -v tag "$DIALOG_MENU_TAGS" $nmatches 1 + f_shell_escape "$wssid" wssid f_wireless_describe WIRELESS_$n help menu_list1="$menu_list1 '$tag $wssid' '$wbssid' '$help' @@ -1076,6 +1077,7 @@ f_menu_wireless_configs() while [ $n -lt $nunique ]; do n=$(( $n + 1 )) menuitem_$n get ssid ssid + f_shell_escape "$ssid" ssid menuitem_$n get nconfigs nconfigs desc="$nconfigs $msg_configured_lc" @@ -1184,6 +1186,7 @@ f_menu_wpa_scan_results() while [ $n -lt $nunique ]; do n=$(( $n + 1 )) menuitem_$n get ssid ssid + f_shell_escape "$ssid" ssid desc= if [ "$DIALOG_MENU_WLAN_SHOW_ALL" ]; then
