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1 <TITLE>CGIWrap - Change Log</TITLE> 2 <CENTER><H2>CGIWrap - Change Log</H2></CENTER> 3 4 These are some of the changes that have occured in CGIWrap from version 5 to version. 6 7 <HR> 8 <P><H3>New in version 4.1:</H3><UL> 9 <LI>Added support for specifying a character set to use for cgiwrap output to address a vulnerability in how IE handles documents without a charset specified. The vulnerability allowed cross site scripting when cgiwrap URLs were accessed from a JA version of IE. To specify the charset to use, provide the "--with-charset=X" option to configure when building cgiwrap. It will default to iso-8859-1 if not specifically set. 10 </UL> 11 12 <HR> 13 <P><H3>New in version 4.0:</H3><UL> 14 <LI>Bumped version number to 4.0 to deal with screwed up release numbering of earlier versions. 15 <LI>Added --with-soft-rlimits-only option based on patch from email@example.com 16 <LI>Added --with-block-svn-paths and --with-block-cvs-paths options to prevent execution of files in those dirs. 17 <LI>Added --with-eruby-interpreter option from BlackSun, Inc. 18 <LI>Added support for setting SIGXCPU even when sigset unavailable - from BlackSun, Inc. 19 <LI>Fixed some warnings. 20 <LI>Added support for overriding DESTDIR to install in separate dir (for packaging), from debian/d3xter 21 </UL> 22 23 <P><H3>New in version 3.10:</H3><UL> 24 <LI>Applied several patches from Javier Fernandez-Sanguino Pen~a <firstname.lastname@example.org> for information release security. Removes additional output when quiet errors is enabled. 25 <LI>Fixed setting of LD_LIBRARY_PATH when configured to do so. 26 <LI>Fixed setting of ARGV for both regular and interpreted scripts when script is in a subdir. Clean up code 27 related to this based on a patch from Jack <email@example.com>. 28 <LI>Updated autoconf helpers to much newer release 29 </UL> 30 31 <P><H3>New in version 3.9:</H3><UL> 32 <LI>Fixed a minor typo preventing allow files from working 33 <LI>Added support for +@netgroup syntax optionally in allow/deny files. 34 <LI>Fixed problem with php-nonexec-only not working properly since exec check done too late. 35 <LI>Applied Piotr's patch few support of newer PHP versions. 36 <LI>Added support for ASP interpreter execution, similar to PHP support. 37 <LI>Fix content of PATH_INFO when it should be / or undefined. Based on patch from Cliff Woolley. 38 </UL> 39 40 <P><H3>New in version 3.8:</H3><UL> 41 <LI>Merged in special handling for PHP scripts by popular demand. This is based mostly on 42 Piotr Klaban's php-cgiwrap patch, with minor changes. 43 <LI>Added options for php support. --with-php-interpreter and --with-php-cgiwrap 44 <LI>Rewrote the path translated support. Is it finally correct? 45 <LI>Patch from firstname.lastname@example.org to use REDIRECT_URL if available for SCRIPT_NAME. 46 <LI>Added support for access control files specific to each HTTP_HOST, useful for ISP's using Apache handlers to run 47 cgi's that want to restrict which userids can run cgi's on certain vhosts. If enabled, the vhost access control files must exist. 48 <LI>Added option to require that REDIRECT_URL be specified in environment. Can be used to require that cgiwrap be invoked via a handler/action or some other internal apache redirection/rewrite. Primarily of use when invoking cgi's for virtual hosts via Action/SetHandler. 49 <LI>Modified san's REDIRECT_URL support to be --with-use-redirect-url instead of --with-check-redirect-url, since it's more a functional change, not a security check. 50 <LI>Added a --with-quiet-errors option to allow significantly restricting the amount of 51 internal information that an error message displays. 52 <LI>Added ability to override the vhost that cgiwrap users via an optional CGIWRAP_AUTH_VHOST env var, which if present and feature enabled, will be used instead of HTTP_HOST. This is useful for 53 when you have wildcard servernames in apache. Enable the --with-vhost-override option if you want this capabillity. Only applicable if vhost allow/deny dir is enabled. 54 <LI>Added ability to only allow scripts run by a specific userid if the CGIWRAP_REQUIRE_USER env var is specified and the --with-env-require-user feature is enabled. 55 <LI>Changed to autoconf 2.5 style templates and eliminated acconfig.h. 56 <LI>Added option to enable the special PHP support only for non-executable files. 57 <LI>Added modified patch by Gabriel Ambuehl to use SCRIPT_URL for SCRIPT_NAME generation. 58 </UL> 59 60 <P><H3>New in version 3.7.1:</H3><UL> 61 <LI>Added --with-minimum-gid option to check minimum user GID and auxilliary groups. This is 62 in response to complaints on BugTraq about suexec not checking auxgroups. 63 </UL> 64 65 <P><H3>New in version 3.7:</H3><UL> 66 <LI>Encode user supplied output in error messages to fix cross-site 67 scripting vulnerability reported by Hiromitsu Takagi. 68 <LI>Minor warning cleanup 69 <LI>Slight improvement to a couple diagnostic messages. 70 </UL> 71 72 <P><H3>New in version 3.6.5:</H3><UL> 73 <LI>Fixed small problem with glibc2.1 and errno.h vs. sys/errno.h 74 <LI>Added simple chroot support for expert installations. 75 <LI>Applied fix for path translated, removed option for not enabling 76 correct path_translated value. 77 <LI>Added multiuser cgi script directory support. 78 <LI>Added patch from Scott Sutherland for fixing parsing of auth files. 79 <LI>Added patch from Christian Kruse for better symlink handling. 80 </UL> 81 82 <P><H3>New in version 3.6.4:</H3><UL> 83 <LI>Changed license to GPL finally. 84 <LI>Fixed netmask comparison 85 <LI>Added anonymous CVS server info 86 <LI>Updates from David Hollenberg for misc. error checking/handling and overflow protection. 87 <LI>Added check for making sure cgiwrap is setuid and printing out a usable 88 error message if not. 89 <LI>Now prints out path to access control files if one or both are missing. 90 <LI>Slight changes to aux groups code just in case setgroups() doesn't 91 support a empty list. 92 <LI>Added some extra info to server userid error message. 93 <LI>Added some info to the FAQ. 94 </UL> 95 96 <P><H3>New in version 3.6.3:</H3><UL> 97 <LI>Added support for checking if user has a valid shell, similar to 98 what ftpd does. The BSD licensed getusershell.o has been included for support 99 where needed. 100 <LI>Bug fix for SEGV condition when certain syntax is used for the request. 101 It did not appear exploitable, but would cause cgiwrap to core as root. Thanks 102 to Michael Bryan (email@example.com) for the fix. 103 </UL> 104 105 <P><H3>New in version 3.6.2:</H3><UL> 106 <LI>Fixed the !logfd check. Thanks to Alexander Wolgast for pointing 107 this out. 108 <LI>Added support for reporting rusage/return code after executing 109 script. 110 <LI>Changed logging to use close-on-exec flag of file descriptor, so 111 it can be left open for reporting rusage if enabled. 112 <LI>Added support for reporting approximate elapsed execution 113 time of a cgi script. 114 </UL> 115 116 <P><H3>New in version 3.6.1:</H3><UL> 117 <LI>Fixed the UserInFile routine. It broke cause I forgot to remove 118 newlines. 119 </UL> 120 121 <P><H3>New in version 3.6:</H3><UL> 122 <LI>Removed check for ./ in the path of the script. The check for 123 ../ is still there. There doesn't seem to be any need for this check as 124 it appears to be harmless. It is being removed to allow for users with 125 "./" in their home dir (for chrooting with wuftpd) to be able to use cgiwrap. 126 <LI>Added code to optionally prevent script execution if the 127 script is group or world writable. I cannot make the check for world 128 writable forced on, since on my site using AFS, the permission bits 129 aren't used, and some scripts might be marked as world writable. Can't 130 break user scripts without a major hassle. 131 <LI>Added code to optionally check if script file is a symbolic 132 link. Of course, the script dir itself could still be a symbolic link. 133 <LI>Changed to GNU autoconf for configuration 134 <LI>Makefile now supports 'install' target with --install-path is 135 specified with configure. 136 <LI>Support added for setting PATH and TZ environment variables 137 before executing script 138 <LI>Support added for setting a bunch of different RLIMIT_ parameters 139 before executing script, as well as allowing the administrator to set the 140 limits with the --with-rlimit-*=value option to configure. 141 <LI>Error messages are now more verbose and output in HTML if possible. 142 <LI>Support for calling script using system() has been removed as it is 143 not really needed for anything, and just slows things down. 144 <LI>Fixed malloc() error check in GetUserDir routines 145 <LI>Fixed race condition with permissions and opening of log file 146 <LI>initgroups() and setgroups() support now enabled by default 147 <LI>Eliminated buffer overrun in error message about chmod'ing 148 script. Thanks to Duncan Simpson (firstname.lastname@example.org) 149 <LI>Added --with-minimum-uid option 150 <LI>Fixed the subdirectory restrict option. (Thanks to Jeffery 151 Chow <email@example.com>) for pointing this out and for testing the fix. 152 <LI>Added CondenseSlashes routine to eliminate doubled and 153 trailing slashes 154 <LI>Added SafeMalloc routine to eliminate the need to check 155 malloc result throughout the code. 156 <LI>Changed tardist target to touch all files and directories 157 so that a consistent time stamp is reached. This should eliminate spurious 158 calls to autoheader when building cgiwrap. 159 <LI>Added in code to configure.in for the various information options 160 such as local-site-url, local-contact-phone, etc. 161 <LI>Added fcntl.h include, needed by open(). Problem reported by 162 Seth Chaiklin <firstname.lastname@example.org>. Also fixed quoting in the configure.in related 163 to log file. 164 <LI>Finished splitting up logging functions and changes to use the 165 Context structure. 166 <LI>Minor changes to the makefile, including telling it to use 167 the CFLAGS, and improving the tardist target. 168 <LI>Moved extra flag stuff for AFS into it's own section and only 169 run it if needed for AFS support. 170 <LI>Not sure why, but 3.6 works with AIX 4, 3.5 did not. 171 <LI>Cleaned up Makefile, finished support for building in a 172 separate directory from the source, added a 'dep' target using depend.awk 173 from mutt distribution. 174 <LI>Fixed problem with CHECKHOST/CHECKHOSTS typos. 175 <LI>Added support for using "*" with checkhost support to restrict 176 ALL userids from being accessed from that host. (*@x.x.x.x/y.y.y.y) 177 <LI>Made 'no way to change uids' a compile time error with #error 178 <LI>Fixed bug with ALLOWFILE define in util.c. 179 </UL> 180 181 <P><H3>New in version 3.5:</H3><UL> 182 <LI>Fixed strerror checking in Configure script and util.c for systems 183 without strerror, can now use strerror, sys_errlist, perror, or just errno. 184 <LI>Major documentation overhaul, create all HTML based docs 185 <LI>Added option (defaulting to yes) to correctly set the 186 PATH_TRANSLATED environment variable. 187 <LI>Fixed bug with the configure script and the use_system 188 option. It would cause a preprocessor error if the system call was not 189 found. 190 <LI>Cleaned up various things with the Configure script 191 <LI>Changed file prompting to allow using ~ paths. 192 193 </UL><P><H3>New in version 3.4:</H3><UL> 194 <LI>Fixed typo "&" instead of "&&" in setgroups stuff 195 <LI>Added cgiwrap.aliases option to rewrite home dirs of users. 196 <LI>Moved entire cgiwrap source build tree to CVS, will make 197 tracking changes easier. 198 <LI>CGIwrap now changes directories to the directory the script is located in before executing the script. Before, it always just changed 199 to the main CGI directory. This behavior is only different if you 200 were using scripts in subdirectories. 201 <LI>Changed style of cgiwrap.allow, cgiwrap.deny files to be the same as 202 cron's allow/deny files. 203 204 </UL><P><H3>New in version 3.3:</H3><UL> 205 <LI>Added support for attaching a label to syslog log messages. 206 <LI>Added code to rewrite the PATH_TRANSLATED environment variable. 207 208 </UL><P><H3>New in version 3.24:</H3><UL> 209 <LI>Added support for logging to syslog. 210 211 </UL><P><H3>New in version 3.23:</H3><UL> 212 <LI>Setgroups was being used no matter what you said in configure - fixed 213 <LI>Problem with undefined variables in Log call for subdirectories - fixed 214 <LI>Removed declaration of sys_errlist, and errno in util.c, since I don't 215 think they were necessary. And they were causing problems on some 216 architectures. 217 <LI>Added in user contributed host address checking code 218 <LI>Upgraded to using dist-3.0 PL60 for building the Configure script. 219 <LI>Separated initgroups() and setgroups() checks into two separate 220 defines, and improved documentation in configure script for these options. 221 222 </UL><P><H3>New in version 3.22:</H3><UL> 223 <LI>argv is now automatically changed to the name of the script that is 224 being executed 225 226 </UL><P><H3>New in version 3.21:</H3><UL> 227 <LI>Rlimit defines weren't set properly when rlimit not available - fixed 228 <LI>The optimizer/debugger flag wasn't being used in the makefile -- fixed 229 <LI>Defaults for checks (y/n) were not being set - fixed 230 231 </UL><P><H3>New in version 3.2:</H3><UL> 232 <LI>MAJOR code cleanup and simplification. The code should be ALOT 233 easier to read and understand. 234 <LI>Fixed the problem in the Makefile on certain architectures with the 235 $(var) not being escaped properly. This should solve problems with Linux 236 machines and BSD machines that I know of. 237 <LI>Changes way PATH_INFO is modified, CGIwrap will now correct SCRIPT_NAME 238 for ?user=USER&script=SCRIPT type requests as well as /user/script type 239 requests. 240 <LI>Subdirectories are now supported for both types of requests 241 <LI>Debugging output has been condensed and is a little easier to read. 242 <LI>Documentation has been reworked, it should be a little easier to use. 243 <LI>Fixed prototypes for all the functions in the cgiwrap source. 244 <LI>Removed a few unnecessary routines 245 <LI>Changed "mystrcpy" to be "strdup", and is compiled only if the current 246 architecture does not have strdup available in it's standard library. 247 248 </UL><P><H3>New in version 3.11:</H3><UL> 249 <LI>Fixed incorrectly indented # directives that were causing problems with 250 some machines. 251 252 </UL><P><H3>New in version 3.1:</H3><UL> 253 <LI>Added CONF_ALLOWFILE and CONF_DENYFILE options. 254 <LI>Added logging of REMOTE_USER and a status message to the log file 255 <LI>Added an unsupported directory for user contributed scripts and add-ons 256 <LI>Restructured logic for which 'set' method gets used. 257 <LI>Removed option to not check if gid changed, it was an oversight that 258 this was left in. There isn't any case I know of that you wouldn't want 259 to check this. 260 <LI>Moved id setting routines into util.c 261 <LI>Added new source file for allow/deny code. 262 <LI>Removed some error output that didn't make sense (system error 263 messages that were getting returned when I issued a regular cgiwrap error) 264 <LI>Added a 'remake' target to the makefile which does a clean, then a 265 Configure -S, then a make all to rebuild he entire binary. This is useful 266 if you have multiple config.sh files (eg. you're building for several 267 setups from the same dir) 268 269 </UL><P><H3>New in version 3.0:</H3><UL> 270 <LI>Set up Configure scripts for CGIwrap 271 <LI>Renamed many of the config options to make more consistent 272 <LI>Rearranged directory structure of CGIwrap distribution 273 <LI>Removed "CONF_SANITIZE" option, it is always on now. 274 <LI>Removed "CONF_CHECK_UID" option, it is always on now. 275 <LI>Removed "CONF_FORCE_DEBUG" option, and "CONF_DEBUG_BY_NAME" option, 276 cgiwrap automatically does debugging output by name now. 277 <LI>Added info about setting up an access-controlled cgiwrap which allows 278 users to control access to their scripts. 279 <LI>Renamed DEBUG to CONF_DEBUG to solve a compile problem with some systems 280 wanting to add -DDEBUG to CFLAGS. 281 282 </UL><P><H3>New in version 2.7:</H3><UL> 283 <LI>Added HTTPD_USER and CHECK_HTTPD_USER to verify that cgiwrap is being 284 called by the server. This is for (access to scripts) security, it 285 doesn't affect system security any. 286 <LI>Added AFS PAG support 287 288 </UL><P><H3>New in version 2.6:</H3><UL> 289 <LI>Moved rlimit call into new subroutine SetLimits 290 <LI>Changed exec call to an execv and passed argv to support argument passing 291 This will only work correctly for scripts called with no other 292 arguments... Eg, must use "cgiwrap/user/script?" syntax 293 294 </UL><P><H3>New in version 2.5:</H3><UL> 295 <LI>Fixed problem with not correctly falling back from PATH_INFO 296 <LI>Added SETUID_SETEUID option for setting UID's 297 <LI>Added checks to make sure effective ugid changed as well as real. 298 299 </UL><P><H3>New in version 2.4:</H3><UL> 300 <LI>Fixed incorrect exec call, added null at end. 301 302 </UL><P><H3>New in version 2.3:</H3><UL> 303 <LI>Fixed location of setgroups() call 304 <LI>Added INSTALL file and fixed PROMO that was old. 305 306 </UL><P><H3>New in version 2.2:</H3><UL> 307 <LI>More debug outpt for environment variables 308 <LI>Option to check exec bit on script and error msg if not set 309 310 </UL><P><H3>New in version 2.1:</H3><UL> 311 <LI>Fixed ~ bug 312 <LI>Added PATH_INFO and SCRIPT_NAME rewrite code 313 <LI>Added SETGROUPS option to config 314 <LI>Added RLIMIT option to config 315 316 </UL><P><H3>New in version 2.0:</H3><UL> 317 <LI>Added support for PATH_INFO specification of user/script 318 <LI>Added stderr redirection to stdout 319 <LI>Added option for doing debugging output by cmd name 320 <LI>Added option to use exec or system calls 321 322 </UL><P><H3>New in version 1.0:</H3><UL> 323 <LI>Everything! This is the first public distribution. 324 </UL> 325 326 327