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Fix directory traversal vulnerability.

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Security:	CAN-2004-1487
Security:	http://vuxml.FreeBSD.org/06f142ff-4df3-11d9-a9e7-0001020eed82.html
		(part of)
Obtained from:	SuSE
Approved by:	erwin (mentor)
This commit is contained in:
Simon L. B. Nielsen 2005-03-08 23:03:20 +00:00
parent 526b678928
commit 9032bfc425
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=130664
2 changed files with 52 additions and 1 deletions
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2
ftp/wget-devel/Makefile
View File

@ -7,7 +7,7 @@
PORTNAME= wget-devel
PORTVERSION= 1.9.1
PORTREVISION= 1
PORTREVISION= 2
CATEGORIES= ftp www
MASTER_SITES= ${MASTER_SITE_GNU}
MASTER_SITE_SUBDIR= wget

51
ftp/wget-devel/files/patch-CAN-2004-1487 Normal file
View File

@ -0,0 +1,51 @@
diff -ruN wget-LFS-20040909/src/http.c wget-LFS-20040909.patched/src/http.c
--- src/http.c.orig 2004-09-09 19:28:26.000000000 -0700
+++ src/http.c 2005-02-21 04:13:05.000000000 -0800
@@ -1719,6 +1719,7 @@
/* Open the local file. */
if (!output_stream)
{
+ sanitize_path(*hs->local_file);
mkalldirs (*hs->local_file);
if (opt.backups)
rotate_backups (*hs->local_file);
diff -ruN wget-LFS-20040909/src/utils.c wget-LFS-20040909.patched/src/utils.c
--- src/utils.c.orig 2004-09-09 13:32:07.000000000 -0700
+++ src/utils.c 2005-02-21 04:11:54.000000000 -0800
@@ -368,6 +368,25 @@
#endif
}
+
+char *
+sanitize_path(char *path)
+{
+ char *str = NULL;
+
+ /* evilhost/../ */
+ while ((str = strstr(path, "..")) != NULL)
+ memcpy(str, "__", 2);
+ /* evilhost/.bashrc */
+ while ((str = strstr(path, "/.")) != NULL)
+ str[1] = '_';
+ /* .bashrc */
+ if (*path == '.')
+ *path = '_';
+ return path;
+}
+
+
/* Returns 0 if PATH is a directory, 1 otherwise (any kind of file).
Returns 0 on error. */
int
diff -ruN wget-LFS-20040909/src/utils.h wget-LFS-20040909.patched/src/utils.h
--- src/utils.h.orig 2004-09-09 21:05:36.000000000 -0700
+++ src/utils.h 2005-02-21 04:04:07.000000000 -0800
@@ -83,6 +83,7 @@
int make_directory PARAMS ((const char *));
char *unique_name PARAMS ((const char *, int));
char *file_merge PARAMS ((const char *, const char *));
+char *sanitize_path PARAMS ((char *));
int acceptable PARAMS ((const char *));
int accdir PARAMS ((const char *s, enum accd));