From 5d3573ef7a109ee70416fe94db098fe6a769a798 Mon Sep 17 00:00:00 2001
From: SkyperTHC
Date: Tue, 3 Mar 2026 06:28:55 +0000
Subject: packetstorm sync

---
 other/openssh-reverse/contrib/chroot.diff | 61 +++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 other/openssh-reverse/contrib/chroot.diff

(limited to 'other/openssh-reverse/contrib/chroot.diff')

diff --git a/other/openssh-reverse/contrib/chroot.diff b/other/openssh-reverse/contrib/chroot.diff
new file mode 100644
index 0000000..d2a42d8
--- /dev/null
+++ b/other/openssh-reverse/contrib/chroot.diff
@@ -0,0 +1,61 @@
+From: Ricardo Cerqueira <rmcc@clix.pt>
+
+A patch to cause sshd to chroot when it encounters the magic token
+'/./' in a users home directory. The directory portion before the
+token is the directory to chroot() to, the portion after the
+token is the user's home directory relative to the new root.
+
+Index: session.c
+===================================================================
+RCS file: /var/cvs/openssh/session.c,v
+retrieving revision 1.4
+diff -u -r1.4 session.c
+--- session.c	2000/04/16 02:31:51	1.4
++++ session.c	2000/04/16 02:47:55
+@@ -27,6 +27,8 @@
+ #include "ssh2.h"
+ #include "auth.h"
+ 
++#define CHROOT
++
+ /* types */
+ 
+ #define TTYSZ 64
+@@ -783,6 +785,10 @@
+ 	extern char **environ;
+ 	struct stat st;
+ 	char *argv[10];
++#ifdef CHROOT
++	char *user_dir;
++	char *new_root;
++#endif /* CHROOT */
+ 
+ #ifndef USE_PAM /* pam_nologin handles this */
+ 	f = fopen("/etc/nologin", "r");
+@@ -799,6 +805,26 @@
+ 	/* Set login name in the kernel. */
+ 	if (setlogin(pw->pw_name) < 0)
+ 		error("setlogin failed: %s", strerror(errno));
++
++#ifdef CHROOT
++	user_dir = xstrdup(pw->pw_dir);
++	new_root = user_dir + 1;  										  
++
++	while((new_root = strchr(new_root, '.')) != NULL) {
++		new_root--;
++		if(strncmp(new_root, "/./", 3) == 0) {
++			*new_root = '\0';
++			new_root += 2;
++
++			if(chroot(user_dir) != 0)
++				fatal("Couldn't chroot to user directory %s", user_dir);
++
++			pw->pw_dir = new_root;
++			break;
++		}
++		new_root += 2;
++	}
++#endif /* CHROOT */
+ 
+ 	/* Set uid, gid, and groups. */
+ 	/* Login(1) does this as well, and it needs uid 0 for the "-h"
-- 
cgit v1.3