Wireshark is a network packet analyzer. A network packet analyzer will try to capture network packets and tries to display that packet data as detailed as possible. You could think of a network packet analyzer as a measuring device used to examine what's going on inside a network cable, just like a voltmeter is used by an electrician to examine what's going on inside an electric cable (but at a higher level, of course). In the past, such tools were either very expensive, proprietary, or both. However, with the advent of Wireshark, all that has changed. Wireshark is perhaps one of the best open source packet analyzers available today.
- Deep inspection of hundreds of protocols, with more being added all the time
- Live capture and offline analysis
- Standard three-pane packet browser
- Multi-platform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others
- Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility
- The most powerful display filters in the industry
- Rich VoIP analysis
- Read/write many different capture file formats
- Capture files compressed with gzip can be decompressed on the fly
- Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platfrom)
- Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
- Coloring rules can be applied to the packet list for quick, intuitive analysis
- Output can be exported to XML, PostScript®, CSV, or plain text
Wireshark 4.0.7 changelog:
The following vulnerabilities have been fixed:
- wnpa-sec-2023-21 Kafka dissector crash. Issue 19105.
- wnpa-sec-2023-22 iSCSI dissector crash. Issue 19164.
The following bugs have been fixed:
- Crash when (re)loading a capture file after renaming a dfilter macro. Issue 13753.
- Moving a column deselects selected packet and moves to beginning of packet list. Issue 16251.
- If you set the default interface in the preferences, it doesn’t work with TShark. Issue 16593.
- Severe performance issues in Follow → Save As raw workflow. Issue 17313.
- TShark doesn’t support the tab character as an aggregator character in \"-T fields\" Issue 18002.
- On Windows clicking on a link in the 'Software Update' window launches, now unsupported, MS Internet Explorer. Issue 18488.
- Wireshark 4.x.x on Win10-x64 crashes after saving a file with a name already in use. Issue 18679.
- NAS-5GS Operator-defined Access Category: Multiple Criteria values not displayed in dissected packet display. Issue 18941.
- Server Hello Packet Invisible - during 802.1x Authentication- from Wireshark App Version 4.0.3 (v4.0.3-0-gc552f74cdc23) & above. Issue 19071.
- TShark reassembled data is incomplete/truncated. Issue 19107.
- CQL protocol parsing issues with Result frames from open source Cassandra. Issue 19119.
- TLS 1.3 second Key Update doesn’t work. Issue 19120.
- HTTP2 dissector reports an assertion error on large data frames. Issue 19121.
- epan: Single letter hostnames aren’t displayed correctly. Issue 19137.
- BLF: CAN-FD-Message format is missing a field. Issue 19146.
- BLF: last parameter of LIN-Message is not mandatory (BUGFIX) Issue 19147.
- PPP IPv6CP: Incorrect payload length warning. Issue 19149.
- INSTALL file needs to be updated for Debian. Issue 19167.
- Some RTP streams make Wireshark crash when trying to play stream. Issue 19170.
- Wrong ordering in OpenFlow 1.0 Datapath unique ID. Issue 19172.
- Incorrect mask in RTCP slice picture ID. Issue 19182.
- Dissection error in AMQP 1.0. Issue 19191.
Updated Protocol Support
- 9P, AMQP, BGP, CQL, DHCPFO, EAP, GlusterFS, GSM MAP, HTTP2, iSCSI, Kafka, Kerberos, NAN, NAS-5GS, OCP.1, OpenFlow 1.0, PDCP-NR, PEAP, PPPoE, RSL, RTCP, rtnetlink, and XMPP
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