Changes:
2.1.0:
======
- A new connection tracking module, Flow (replaces conversation)
- A new portscan detector based off of Flow, Flow-Portscan (replaces
portscan2)
- A new http preprocessor, HttpInspect (replaces http_decode)
- Alert Thresholding and Suppression
- PCRE rule keyword (Perl Compat Regular Expressions)
- isdataat rule keyword (buffer length detection)
- A ton of new and updated rules.
2.0.6:
======
- 64-bit update for detection engine. (Thanks, Silio d'Angelo)
- Added better PPP decoding. (Thanks Jesper Peterson)
- Updated ip_proto optimization for high-speed detection engine.
- Fixed infinite loop problem that was introduced by the recursive pattern
matching patch. Reported by Lawrence Reed, thanks for testing out the
changes for us!
- Various changes to help respond (version 1) work a little better.
- spp_http_decode 64-bit patch from Dirk Mueller.
- Out-of-order ACK problem from Andrew Rucker. Also, updated stream4 to the
most recent version from HEAD.
- Minor fixes to tagging related to 'src' and 'dst' directives
- When counting one byte patterns in 'ningroup' added a check for
psLen==1 (wu-manber pattern matcher). Thanks Josh Sakofsky and Dennis
McGuire for helping us test this.
2.0.5:
======
- Stream4 fixes from Andrew Rucker Jones.
- Allow memcap to be configured for threshold features.
2.0.4:
======
- Fixed a core dump introduced with 2.0.3 when dealing with negated patterns
2.0.3:
======
- doe_ptr handling in byte_test/byte_jump slightly modified to work
better with the pcre patch
- content processing is now recursive to make distance/within processing
better ( thanks to Shai Rubin for patch! )
- fixed a bug in the mwm.c pattern matcher that resulted in some alerts
not firing in a particular configuration of rules
2.0.2:
======
- Added Thresholding and Suppression features (Marc Norton/Sourcefire)
- Fixed TCP RST processing bug found (Shai Rubin)
- Cleanup of spp_arpspoof (Jeff Nathan)
- Cleanup of win32 version including proper Event Log support (Chris Reid)
- Munged data fixes for stream4 (Chris Green)
Patch from Adrian Portelli via PR pkg/22900.
Changes:
- Added Thresholding and Suppression features (Marc Norton/Sourcefire)
- Fixed TCP RST processing bug found (Shai Rubin)
- Cleanup of spp_arpspoof (Jeff Nathan)
- Cleanup of win32 version including proper Event Log support (Chris Reid)
- Munged data fixes for stream4 (Chris Green)
Changes:
- fix host endianess problem in udp decoder
- vlan decoding fixes from Michael Pomraning
- add tcp state checking to httpflow
- ignoring bad checksums throughout snort if checksumming is turned on
- config disable_ttcp_alerts is now also config disable_tcpopt_ttcp_alerts
- better initialization handling of low memory conditions pointing to the
- low memory search engine
- byte_jump / byte_test 2 byte cases handled and unified
- correctly assign port numbers on tcpoption events
- pass rule logic changed to "win" in specific multiple event cases
- named interface support for win32 from the winpcap folks
- spp_bo now also will work with log-only output plugins
- added window detection plugin documentation to manual
- lots of new rules and tons of rule documentation
IMPORTANT: This version fixes remotely exploitable heap overflow in the stream4
preprocessor module.
Advisory: http://www.coresecurity.com/common/showdoc.php?idx=313&idxseccion=10
Changes:
2.0.0:
======
- Enhanced high-performance detection engine
- Stateful Pattern Matching
- New detection keywords: byte_test & byte_jump
- The Snort code base has undergone an external third party professional
security audit funded by Sourcefire (http://www.sourcefire.com)
- Many new and updated rules
- snort.conf has been updated
- Enhancements to self preservation mechanisms in stream4 and frag2
- State tracking fixes in stream4
- New HTTP flow analyzer
- Enhanced protocol decoding (TCP options, 802.1q, etc)
- Enhanced protocol anomaly detection (IP, TCP, UDP, ICMP, RPC, HTTP, etc)
- Enhanced flexresp mode for real-time TCP session sniping
- Better chroot()'ing
- Tagging system updated
- Several million bugs addressed....
- Updated FAQ (thanks to Erek Adams and Dragos Ruiu) Snort 2.0 can be
downloaded at http://www.snort.org/dl/snort-2.0.0.tar.gz. Binary
versions of the codebase will be built over the next several days and
made available at here.
2.0.rc4:
========
- byte_jump/byte_test don't force relative content options
- byte_jump/byte_test absolute offsets work
- Better FIN handling in Stream4
2.0.rc3:
========
- A low memory usage detection method (enabled via "config detection:
search-method lowmem")
- Moved the default unix socket location to LOGDIR
2.0.rc2:
========
- syslog should work on win32 and unix
- major tagging updates
- new UDP decoding alerts
- snort.conf updates
2.0.rc1:
========
- Higher performance (due to a new pattern matcher and rebuilt detection
engine)
- Better decoders
- Enhanced stream reassembly and defragmentation
- Tons of bug fixes
- Updated rules
- Updated snort.conf
- New detection keywords (byte_test, byte_jump, distance, within) &
stateful pattern matching
- New HTTP flow analyzer
- Enhanced anomaly detection (HTTP, RPC, TCP, IP, etc)
- Better self preservation in stateful subsystems
- Xrefs fixed
- Flexresp works faster and more effectively
- Better chroot()'ing
- Fixed 802.1q decoding
- Better async state handling
- New alerting option: -A cmg!!
This version fixes the buffer overflow issue noted in:
http://www.kb.cert.org/vuls/id/916785
Changes:
- follow PKG_SYSCONFDIR
- added rc.d script
- create own user and group
- added MESSAGE with post-install instructions
- removed DEINSTALL
- minor cleanups (this package was really half-baked..)
1.9.1:
======
- src/preprocessors/spp_rpc_decode.c (PreprocRpcDecode):
- alignment errors on non-x86 platforms
- added new space delimited options
alert_fragments
no_alert_multiple_requests
no_alert_large_fragments
no_alert_incomplete
- corrected buffer overflow in fragment normalization
- src/snort.c
- Win32 '-s' parameter wasn't configured to accept an optarg,
but code expected one, causing null-pointer violation.
- Backport of 2.0 fixes for stream4 ( off by one errors on reassembly )
Changes:
The main purpose of this release is a stable target with many fragroute
and tcp connection oriented fixes. This is also the last release of the
1.8.7 line and signals the start of the beta cycle for the 1.9 branch.
