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* Check for common ALPNs and set a flow risk if not known. (#1175)Toni2021-04-27
| | | | | | * Increased risk bitmask to 64bit (instead of 32bit). * Removed annoying "Unknown datalink" error message for fuzzers. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* TLS: fix some use-of-uninitialized-value errors in ClientHello parsing (#1169)Ivan Nardi2021-04-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Error detected with valgrind. ==125883== Conditional jump or move depends on uninitialised value(s) ==125883== at 0x438F57: processClientServerHello (tls.c:1421) ==125883== by 0x43B35A: processTLSBlock (tls.c:712) ==125883== by 0x43B1C4: ndpi_search_tls_tcp (tls.c:849) ==125883== by 0x42C60B: check_ndpi_detection_func (ndpi_main.c:4426) ==125883== by 0x42E920: ndpi_detection_process_packet (ndpi_main.c:5301) ==125916== Conditional jump or move depends on uninitialised value(s) ==125916== at 0x438D7D: processClientServerHello (tls.c:1379) ==125916== by 0x43B35A: processTLSBlock (tls.c:712) ==125916== by 0x43B1C4: ndpi_search_tls_tcp (tls.c:849) ==125916== by 0x42C60B: check_ndpi_detection_func (ndpi_main.c:4426) ==125932== Conditional jump or move depends on uninitialised value(s) ==125932== at 0x438C1D: processClientServerHello (tls.c:1298) ==125932== by 0x43B35A: processTLSBlock (tls.c:712) ==125932== by 0x43B1C4: ndpi_search_tls_tcp (tls.c:849) ==125932== by 0x42C60B: check_ndpi_detection_func (ndpi_main.c:4426) ==125950== Conditional jump or move depends on uninitialised value(s) ==125950== at 0x438D4F: processClientServerHello (tls.c:1371) ==125950== by 0x43B35A: processTLSBlock (tls.c:712) ==125950== by 0x43B1C4: ndpi_search_tls_tcp (tls.c:849) ==125950== by 0x42C079: check_ndpi_detection_func (ndpi_main.c:4443)
* Added NDPI_DESKTOP_OR_FILE_SHARING_SESSION risk to remote protocols for ↵Luca Deri2021-04-12
| | | | remote assistance sessions
* Added NDPI_DESKTOP_OR_FILE_SHARING_SESSION flow riskLuca Deri2021-04-11
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* Win compilation fixLuca Deri2021-03-22
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* Better DGA detection (slightly decreased accuracy)Luca Deri2021-03-20
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* Removed duplicate extesions lenLuca Deri2021-03-19
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* Added ALPN and elliptic curve in JA3S+Luca Deri2021-03-19
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* Implemented JA3+ also for JA3SLuca Deri2021-03-19
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* Reworked JA3Luca Deri2021-03-19
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* JA3 debug improvementsLuca Deri2021-03-19
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* Fix compilation warningAlfredo Cardigliano2021-03-12
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* Fixed JA3+ computationLuca Deri2021-03-11
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* Added experiemntal JA3+ implementation that can be used with -z i ndpiReaderLuca Deri2021-03-09
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* Improved DGA detection with trigrams. Disadvantage: slower startup timeLuca Deri2021-03-03
| | | | | Reworked Tor dissector embedded in TLS (fixes #1141) Removed false positive on HTTP User-Agent
* DTLS: improve support (#1146)Ivan Nardi2021-03-02
| | | | | | | * DTLS: add some pcap tests * DTLS: fix parsing of Client/Server Helllo message * DTLS: add parsing of server certificates
* Added NDPI_MALICIOUS_SHA1 flow risk. (#1142)Toni2021-02-26
| | | | | | * An external file which contains known malicious SSL certificate SHA-1 hashes can be loaded via ndpi_load_malicious_sha1_file(...) Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added NDPI_MALICIOUS_JA3 flow riskLuca Deri2021-02-22
| | | | Added ndpi_load_malicious_ja3_file() API call
* Implemented TLS Certificate Sibject matchingLuca Deri2021-02-22
| | | | Improved AnyDesk detection
* Improved (partial) TLS dissectionLuca Deri2021-02-04
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* debug message bugfix (#1108)ragostino2021-02-03
| | | you can not look for memory enlargement if you print debug message after updating the variables
* Cleaned up tls/quic datatypesLuca Deri2021-01-21
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* Reworked TLS fingerprint calcolationLuca Deri2021-01-21
| | | | Modified TLS memory free
* Rewored UPnP protocol that in essence was WSD hence it has been renamedLuca2021-01-20
| | | | Cleaned up TLS code for DTLS detection by defining a new DTLS protocol
* (C) UpdateLuca Deri2021-01-07
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* Quic fixes (#1106)Ivan Nardi2021-01-07
| | | | | * QUIC: fix heap-buffer-overflow * TLS: fix parsing of QUIC Transport Parameters
* QUIC: update to draft-33 (#1104)Ivan Nardi2021-01-04
| | | QUIC (final!?) constants for v1 are defined in draft-33
* Introduced fix on TLS for discarding traffic out of sequence that might ↵Luca Deri2020-12-22
| | | | invalidate dissection
* fixes issue #1050 Syntax error caused buffer pointer to equal 0x1 (#1051)Don J. Rude2020-11-09
| | | | | | | | | | | | | | | | | * Syntax error caused buffer pointer to equal 0x1 Possible copy-paste from lines 141-142? * Another comma operator * whitespace matching * another comma operator * another comma operator * another comma operator * Check for non-zero payload
* Updated ESNI/SNI alarm generation prolicyLuca Deri2020-11-08
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* Added -D flag for detecting DoH in the wildLuca Deri2020-10-26
| | | | Removed heuristic from CiscoVPN as it leads to false positives
* Various improvemement when using ndpi_pref_enable_tls_block_dissection:Luca Deri2020-10-24
| | | | | | application data TLS blocks are now ignored when exchanged before - the end of certificate negotiation (up to TLS 1.2) - change cipher
* Added fix for invalid SNI check when SNI is missingLuca Deri2020-10-02
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* Added risks for checkingLuca Deri2020-09-21
| | | | | - invalid DNS traffic (probably carrying exfiltrated data) - TLS traffic with no SNI extension
* Merge pull request #1012 from IvanNardi/uaLuca Deri2020-09-17
|\ | | | | QUIC: extract User Agent information
| * TLS: fix memory accesses in QUIC transport parameters extensionNardi Ivan2020-09-10
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| * QUIC: extract User Agent informationNardi Ivan2020-09-08
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* | Added extension to detect nested subdomains as used in Browsertunnel attack toolLuca Deri2020-09-09
|/ | | | https://github.com/veggiedefender/browsertunnel
* Update TLS dissector to handle QUIC flowsNardi Ivan2020-08-21
| | | | | | | Latest QUIC versions use TLS for the encryption layer: reuse existing code to allow Client Hello parsing and sub-classification based on SNI value. Side effect: we might have J3AC, TLS negotiated version, SNI value and supported cipher list for QUIC, too.
* Suspicious ESNI usage: add a comment and a pcap exampleNardi Ivan2020-08-06
| | | | See: 79b89d286605635f15edfe3c21297aaa3b5f3acf
* Merge pull request #973 from IvanNardi/esni3Luca Deri2020-08-06
|\ | | | | Add risk flag about suspicious ESNI usage
| * Add risk flag about suspicious ESNI usageNardi Ivan2020-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a Client Hello, the presence of both SNI and ESNI may obfuscate the real domain of an HTTPS connection, fooling DPI engines and firewalls, similarly to Domain Fronting. Such technique is reported in a presentation at DEF CON 28: "Domain Fronting is Dead, Long Live Domain Fronting: Using TLS 1.3 to evade censors, bypass network defenses, and blend in with the noise" Full credit for the idea must go the original author At the moment, the only way to get the pdf presention and related video is via https://forum.defcon.org/node/234492 Hopefully a direct link (and an example pcap) will be available soon
* | Fixed possible memory leak in TLS certificate handlingLuca Deri2020-08-05
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* Added memory checksLuca Deri2020-08-02
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* Fixed partial TLS dissectionLuca Deri2020-07-30
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* Restored TLS dissectionLuca Deri2020-07-30
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* Tiny changes for TLS block lenght dissectionLuca Deri2020-07-29
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* TLS dissection improvementsLuca Deri2020-07-28
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* Fix for invalid boundary checkLuca Deri2020-07-17
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* Fixed race condition in ndpi_ssl_version2str() caused by static qualifier in ↵Toni Uhlig2020-07-11
| | | | | | | | | the version string buffer. * added also GREASE supported tls versions as specified in https://tools.ietf.org/html/draft-davidben-tls-grease-01#page-4 Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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