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([136.226.250.253]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29dae49c46csm135351415ad.18.2025.12.08.11.00.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Dec 2025 11:00:07 -0800 (PST) From: ankur.tyagi85@gmail.com To: openembedded-devel@lists.openembedded.org Cc: Wang Mingyu , Khem Raj , Ankur Tyagi Subject: [oe][meta-networking][scarthgap][PATCH 1/2] corosync: upgrade 3.1.9 -> 3.1.10 Date: Tue, 9 Dec 2025 08:00:00 +1300 Message-ID: <20251208190000.3119070-1-ankur.tyagi85@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 08 Dec 2025 19:00:18 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-devel/message/122385 From: Wang Mingyu CVE-2025-30472.patch removed since it's included in 3.1.10 Signed-off-by: Wang Mingyu Signed-off-by: Khem Raj (cherry picked from commit 7915bcecf5b25eb525c5700fc4196422596b5a38) Signed-off-by: Ankur Tyagi --- .../corosync/corosync/CVE-2025-30472.patch | 69 ------------------- .../{corosync_3.1.9.bb => corosync_3.1.10.bb} | 5 +- 2 files changed, 2 insertions(+), 72 deletions(-) delete mode 100644 meta-networking/recipes-extended/corosync/corosync/CVE-2025-30472.patch rename meta-networking/recipes-extended/corosync/{corosync_3.1.9.bb => corosync_3.1.10.bb} (94%) diff --git a/meta-networking/recipes-extended/corosync/corosync/CVE-2025-30472.patch b/meta-networking/recipes-extended/corosync/corosync/CVE-2025-30472.patch deleted file mode 100644 index 9b36dbe3fb..0000000000 --- a/meta-networking/recipes-extended/corosync/corosync/CVE-2025-30472.patch +++ /dev/null @@ -1,69 +0,0 @@ -From 7839990f9cdf34e55435ed90109e82709032466a Mon Sep 17 00:00:00 2001 -From: Jan Friesse -Date: Mon, 24 Mar 2025 12:05:08 +0100 -Subject: [PATCH] totemsrp: Check size of orf_token msg - -orf_token message is stored into preallocated array on endian convert -so carefully crafted malicious message can lead to crash of corosync. - -Solution is to check message size beforehand. - -Signed-off-by: Jan Friesse -Reviewed-by: Christine Caulfield - -CVE: CVE-2025-30472 -Upstream-Status: Backport [https://github.com/corosync/corosync/commits/7839990f9cdf34e55435ed90109e82709032466a] -Signed-off-by: Peter Marko ---- - exec/totemsrp.c | 18 +++++++++++++++++- - 1 file changed, 17 insertions(+), 1 deletion(-) - -diff --git a/exec/totemsrp.c b/exec/totemsrp.c -index 962d0e2a..364528ce 100644 ---- a/exec/totemsrp.c -+++ b/exec/totemsrp.c -@@ -3679,12 +3679,20 @@ static int check_orf_token_sanity( - const struct totemsrp_instance *instance, - const void *msg, - size_t msg_len, -+ size_t max_msg_len, - int endian_conversion_needed) - { - int rtr_entries; - const struct orf_token *token = (const struct orf_token *)msg; - size_t required_len; - -+ if (msg_len > max_msg_len) { -+ log_printf (instance->totemsrp_log_level_security, -+ "Received orf_token message is too long... ignoring."); -+ -+ return (-1); -+ } -+ - if (msg_len < sizeof(struct orf_token)) { - log_printf (instance->totemsrp_log_level_security, - "Received orf_token message is too short... ignoring."); -@@ -3698,6 +3706,13 @@ static int check_orf_token_sanity( - rtr_entries = token->rtr_list_entries; - } - -+ if (rtr_entries > RETRANSMIT_ENTRIES_MAX) { -+ log_printf (instance->totemsrp_log_level_security, -+ "Received orf_token message rtr_entries is corrupted... ignoring."); -+ -+ return (-1); -+ } -+ - required_len = sizeof(struct orf_token) + rtr_entries * sizeof(struct rtr_item); - if (msg_len < required_len) { - log_printf (instance->totemsrp_log_level_security, -@@ -3868,7 +3883,8 @@ static int message_handler_orf_token ( - "Time since last token %0.4f ms", tv_diff / (float)QB_TIME_NS_IN_MSEC); - #endif - -- if (check_orf_token_sanity(instance, msg, msg_len, endian_conversion_needed) == -1) { -+ if (check_orf_token_sanity(instance, msg, msg_len, sizeof(token_storage), -+ endian_conversion_needed) == -1) { - return (0); - } - diff --git a/meta-networking/recipes-extended/corosync/corosync_3.1.9.bb b/meta-networking/recipes-extended/corosync/corosync_3.1.10.bb similarity index 94% rename from meta-networking/recipes-extended/corosync/corosync_3.1.9.bb rename to meta-networking/recipes-extended/corosync/corosync_3.1.10.bb index cd9feb5da5..0cb475a4d4 100644 --- a/meta-networking/recipes-extended/corosync/corosync_3.1.9.bb +++ b/meta-networking/recipes-extended/corosync/corosync_3.1.10.bb @@ -9,9 +9,8 @@ inherit autotools pkgconfig systemd github-releases SRC_URI = "${GITHUB_BASE_URI}/download/v${PV}/${BP}.tar.gz \ file://corosync.conf \ - file://CVE-2025-30472.patch \ - " -SRC_URI[sha256sum] = "203354bbddee1a97b3c50a076eae89c635f406dd674ccaefc94bb9092acd9535" + " +SRC_URI[sha256sum] = "be361c827f99b215b3bd3fa2fb071c03dac6831c2a351963d938caef62604bc8" UPSTREAM_CHECK_GITTAGREGEX = "v(?P\d+(\.\d+)+)" LICENSE = "BSD-3-Clause" From patchwork Mon Dec 8 19:00:19 2025 Content-Type: text/plain; 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([136.226.250.253]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7e2af93c770sm13947659b3a.65.2025.12.08.11.00.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Dec 2025 11:00:28 -0800 (PST) From: ankur.tyagi85@gmail.com To: openembedded-devel@lists.openembedded.org Cc: Vijay Anusuri , Gyorgy Sarvari , Ankur Tyagi Subject: [oe][meta-networking][scarthgap][PATCH 2/2] proftpd: Fix CVE-2023-48795 Date: Tue, 9 Dec 2025 08:00:19 +1300 Message-ID: <20251208190019.3119238-1-ankur.tyagi85@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 08 Dec 2025 19:00:37 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-devel/message/122386 From: Vijay Anusuri Upstream-Status: Backport from https://github.com/proftpd/proftpd/commit/bcec15efe6c53dac40420731013f1cd2fd54123b Signed-off-by: Vijay Anusuri Signed-off-by: Gyorgy Sarvari (cherry picked from commit 6c8ae54fc345fb6249f1cc92ed769d451ddc12b5) Signed-off-by: Ankur Tyagi --- .../proftpd/files/CVE-2023-48795.patch | 751 ++++++++++++++++++ .../recipes-daemons/proftpd/proftpd_1.3.7f.bb | 1 + 2 files changed, 752 insertions(+) create mode 100644 meta-networking/recipes-daemons/proftpd/files/CVE-2023-48795.patch diff --git a/meta-networking/recipes-daemons/proftpd/files/CVE-2023-48795.patch b/meta-networking/recipes-daemons/proftpd/files/CVE-2023-48795.patch new file mode 100644 index 0000000000..39def781fb --- /dev/null +++ b/meta-networking/recipes-daemons/proftpd/files/CVE-2023-48795.patch @@ -0,0 +1,751 @@ +From bcec15efe6c53dac40420731013f1cd2fd54123b Mon Sep 17 00:00:00 2001 +From: TJ Saunders +Date: Tue, 19 Dec 2023 18:55:58 -0800 +Subject: [PATCH] Issue #1760: Implement the "strict KEX" mitigations for the + Terrapin SSH protocol attack (CVE-2023-48795). + +Upstream-Status: Backport [https://github.com/proftpd/proftpd/commit/bcec15efe6c53dac40420731013f1cd2fd54123b] +CVE: CVE-2023-48795 +Signed-off-by: Vijay Anusuri +--- + contrib/mod_sftp/kex.c | 124 ++++++++-- + contrib/mod_sftp/mod_sftp.c | 8 +- + contrib/mod_sftp/mod_sftp.h.in | 1 + + contrib/mod_sftp/packet.c | 12 + + contrib/mod_sftp/packet.h | 9 +- + contrib/mod_sftp/tap.c | 26 ++- + contrib/mod_sftp/tap.h | 5 +- + doc/contrib/mod_sftp.html | 15 +- + tests/t/lib/ProFTPD/Tests/Modules/mod_sftp.pm | 217 ++++++++++++++++++ + 9 files changed, 380 insertions(+), 37 deletions(-) + +diff --git a/contrib/mod_sftp/kex.c b/contrib/mod_sftp/kex.c +index 754bd9e87..c1caa1c27 100644 +--- a/contrib/mod_sftp/kex.c ++++ b/contrib/mod_sftp/kex.c +@@ -149,6 +149,13 @@ static struct sftp_kex *kex_first_kex = NULL; + static struct sftp_kex *kex_rekey_kex = NULL; + static int kex_sent_kexinit = FALSE; + ++/* Using strict kex? Note that we maintain this value here, rather than ++ * in the sftp_kex struct, so that any "use strict KEX" flag set via the ++ * first KEXINIT is used through any subsequent KEXINITs. ++ */ ++static int use_strict_kex = FALSE; ++static int kex_done_first_kex = FALSE; ++ + /* Diffie-Hellman group moduli */ + + static const char *dh_group1_str = +@@ -1593,6 +1600,16 @@ static const char *get_kexinit_exchange_list(pool *p) { + res = pstrcat(p, res, *res ? "," : "", pstrdup(p, "ext-info-s"), NULL); + } + ++ if (!(sftp_opts & SFTP_OPT_NO_STRICT_KEX)) { ++ /* Indicate support for OpenSSH's custom "strict KEX" mode extension, ++ * but only if we have not done/completed our first KEX. ++ */ ++ if (kex_done_first_kex == FALSE) { ++ res = pstrcat(p, res, *res ? "," : "", ++ pstrdup(p, "kex-strict-s-v00@openssh.com"), NULL); ++ } ++ } ++ + return res; + } + +@@ -2174,6 +2191,21 @@ static int get_session_names(struct sftp_kex *kex, int *correct_guess) { + pr_trace_msg(trace_channel, 20, "client %s EXT_INFO support", + kex->use_ext_info ? "signaled" : "did not signal" ); + ++ if (!(sftp_opts & SFTP_OPT_NO_STRICT_KEX)) { ++ /* Did the client indicate "strict kex" support (Issue 1760)? ++ * ++ * Note that we only check for this if it is our first KEXINIT. ++ * The "strict kex" extension is ignored in any subsequent KEXINITs, as ++ * for rekeys. ++ */ ++ if (kex_done_first_kex == FALSE) { ++ use_strict_kex = sftp_misc_namelist_contains(kex->pool, ++ client_list, "kex-strict-c-v00@openssh.com"); ++ pr_trace_msg(trace_channel, 20, "client %s strict KEX support", ++ use_strict_kex ? "signaled" : "did not signal" ); ++ } ++ } ++ + } else { + (void) pr_log_writefile(sftp_logfd, MOD_SFTP_VERSION, + "no shared key exchange algorithm found (client sent '%s', server sent " +@@ -4406,7 +4438,6 @@ static int handle_kex_ecdh(struct ssh2_packet *pkt, struct sftp_kex *kex) { + destroy_pool(pkt->pool); + return 0; + } +- + #endif /* PR_USE_OPENSSL_ECC */ + + static struct ssh2_packet *read_kex_packet(pool *p, struct sftp_kex *kex, +@@ -4457,6 +4488,10 @@ static struct ssh2_packet *read_kex_packet(pool *p, struct sftp_kex *kex, + /* Per RFC 4253, Section 11, DEBUG, DISCONNECT, IGNORE, and UNIMPLEMENTED + * messages can occur at any time, even during KEX. We have to be prepared + * for this, and Do The Right Thing(tm). ++ * ++ * However, due to the Terrapin attack, if we are using a "strict KEX" ++ * mode, then only DISCONNECT messages can occur during KEX; DEBUG, ++ * IGNORE, and UNIMPLEMENTED messages will lead to disconnecting. + */ + + mesg_type = sftp_ssh2_packet_get_mesg_type(pkt); +@@ -4485,35 +4520,43 @@ static struct ssh2_packet *read_kex_packet(pool *p, struct sftp_kex *kex, + } + + switch (mesg_type) { +- case SFTP_SSH2_MSG_DEBUG: +- sftp_ssh2_packet_handle_debug(pkt); +- pr_response_set_pool(NULL); +- pkt = NULL; +- break; +- ++ /* DISCONNECT messages are always allowed. */ + case SFTP_SSH2_MSG_DISCONNECT: + sftp_ssh2_packet_handle_disconnect(pkt); + pr_response_set_pool(NULL); + pkt = NULL; + break; + ++ case SFTP_SSH2_MSG_DEBUG: ++ if (use_strict_kex == FALSE) { ++ sftp_ssh2_packet_handle_debug(pkt); ++ pr_response_set_pool(NULL); ++ pkt = NULL; ++ break; ++ } ++ + case SFTP_SSH2_MSG_IGNORE: +- sftp_ssh2_packet_handle_ignore(pkt); +- pr_response_set_pool(NULL); +- pkt = NULL; +- break; ++ if (use_strict_kex == FALSE) { ++ sftp_ssh2_packet_handle_ignore(pkt); ++ pr_response_set_pool(NULL); ++ pkt = NULL; ++ break; ++ } + + case SFTP_SSH2_MSG_UNIMPLEMENTED: +- sftp_ssh2_packet_handle_unimplemented(pkt); +- pr_response_set_pool(NULL); +- pkt = NULL; +- break; ++ if (use_strict_kex == FALSE) { ++ sftp_ssh2_packet_handle_unimplemented(pkt); ++ pr_response_set_pool(NULL); ++ pkt = NULL; ++ break; ++ } + + default: + /* For any other message type, it's considered a protocol error. */ + (void) pr_log_writefile(sftp_logfd, MOD_SFTP_VERSION, +- "received %s (%d) unexpectedly, disconnecting", +- sftp_ssh2_packet_get_mesg_type_desc(mesg_type), mesg_type); ++ "received %s (%d) unexpectedly%s, disconnecting", ++ sftp_ssh2_packet_get_mesg_type_desc(mesg_type), mesg_type, ++ use_strict_kex ? " during strict KEX" : ""); + pr_response_set_pool(NULL); + destroy_kex(kex); + destroy_pool(pkt->pool); +@@ -4534,7 +4577,7 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + * initial connect (kex_first_kex not null), or because we + * are in a server-initiated rekeying (kex_rekey_kex not null). + */ +- if (kex_first_kex) { ++ if (kex_first_kex != NULL) { + kex = kex_first_kex; + + /* We need to assign the client/server versions, which this struct +@@ -4543,7 +4586,7 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + kex->client_version = kex_client_version; + kex->server_version = kex_server_version; + +- } else if (kex_rekey_kex) { ++ } else if (kex_rekey_kex != NULL) { + kex = kex_rekey_kex; + + } else { +@@ -4579,6 +4622,24 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + return -1; + } + ++ if (use_strict_kex == TRUE && ++ kex_done_first_kex == FALSE) { ++ uint32_t client_seqno; ++ ++ client_seqno = sftp_ssh2_packet_get_client_seqno(); ++ if (client_seqno != 1) { ++ /* Receiving any messages other than a KEXINIT as the first client ++ * message indicates the possibility of the Terrapin attack being ++ * conducted (Issue 1760). Thus we disconnect the client in such ++ * cases. ++ */ ++ (void) pr_log_writefile(sftp_logfd, MOD_SFTP_VERSION, ++ "'strict KEX' violation, as KEXINIT was not the first message; disconnecting"); ++ destroy_kex(kex); ++ SFTP_DISCONNECT_CONN(SFTP_SSH2_DISCONNECT_BY_APPLICATION, NULL); ++ } ++ } ++ + /* Once we have received the client KEXINIT message, we can compare what we + * want to send against what we already received from the client. + * +@@ -4637,7 +4698,7 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + + destroy_pool(pkt->pool); + +- if (!kex_sent_kexinit) { ++ if (kex_sent_kexinit == FALSE) { + pkt = sftp_ssh2_packet_create(kex_pool); + res = write_kexinit(pkt, kex); + if (res < 0) { +@@ -4660,7 +4721,7 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + } + } + +- if (!kex_sent_kexinit) { ++ if (kex_sent_kexinit == FALSE) { + pkt = sftp_ssh2_packet_create(kex_pool); + res = write_kexinit(pkt, kex); + if (res < 0) { +@@ -4785,7 +4846,7 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + NULL, 1, SFTP_SSH2_MSG_NEWKEYS); + + /* If we didn't send our NEWKEYS message earlier, do it now. */ +- if (!sent_newkeys) { ++ if (sent_newkeys == FALSE) { + struct ssh2_packet *pkt2; + + pr_trace_msg(trace_channel, 9, "sending NEWKEYS message to client"); +@@ -4809,6 +4870,11 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + destroy_pool(pkt2->pool); + } + ++ if (use_strict_kex == TRUE) { ++ sftp_ssh2_packet_reset_client_seqno(); ++ sftp_ssh2_packet_reset_server_seqno(); ++ } ++ + /* Last but certainly not least, set up the keys for encryption and + * authentication, based on H and K. + */ +@@ -4828,6 +4894,9 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + destroy_pool(pkt->pool); + cmd = NULL; + ++ /* We've now completed our KEX, possibly our first. */ ++ kex_done_first_kex = TRUE; ++ + /* If extension negotiation has not been disabled, AND if we have not + * received a service request, AND if the client sent "ext-info-c", THEN + * send our EXT_INFO. We do not want send this during rekeys. +@@ -4864,6 +4933,12 @@ int sftp_kex_handle(struct ssh2_packet *pkt) { + cmd = NULL; + } + ++ /* Only start the TAP timer after we have completed our first KEX. ++ * Otherwise, we risk sending "illegal" packets prior to, or during, ++ * a "strict KEX" session (Issue 1760). ++ */ ++ sftp_tap_start_policy(); ++ + /* Reset this flag for the next time through. */ + kex_sent_kexinit = FALSE; + +@@ -4893,7 +4968,7 @@ int sftp_kex_free(void) { + destroy_kex(rekey_kex); + } + +- if (kex_pool) { ++ if (kex_pool != NULL) { + destroy_pool(kex_pool); + kex_pool = NULL; + } +@@ -5065,7 +5140,7 @@ int sftp_kex_send_first_kexinit(void) { + struct ssh2_packet *pkt; + int res; + +- if (!kex_pool) { ++ if (kex_pool == NULL) { + kex_pool = make_sub_pool(sftp_pool); + pr_pool_tag(kex_pool, "Kex Pool"); + } +@@ -5100,4 +5175,3 @@ int sftp_kex_send_first_kexinit(void) { + destroy_pool(pkt->pool); + return 0; + } +- +diff --git a/contrib/mod_sftp/mod_sftp.c b/contrib/mod_sftp/mod_sftp.c +index b84b1a77b..2406ea611 100644 +--- a/contrib/mod_sftp/mod_sftp.c ++++ b/contrib/mod_sftp/mod_sftp.c +@@ -1,6 +1,6 @@ + /* + * ProFTPD - mod_sftp +- * Copyright (c) 2008-2020 TJ Saunders ++ * Copyright (c) 2008-2023 TJ Saunders + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by +@@ -1411,8 +1411,9 @@ MODRET set_sftpoptions(cmd_rec *cmd) { + config_rec *c; + unsigned long opts = 0UL; + +- if (cmd->argc-1 == 0) ++ if (cmd->argc-1 == 0) { + CONF_ERROR(cmd, "wrong number of parameters"); ++ } + + CHECK_CONF(cmd, CONF_ROOT|CONF_VIRTUAL|CONF_GLOBAL); + +@@ -1476,6 +1477,9 @@ MODRET set_sftpoptions(cmd_rec *cmd) { + } else if (strcmp(cmd->argv[i], "NoExtensionNegotiation") == 0) { + opts |= SFTP_OPT_NO_EXT_INFO; + ++ } else if (strcmp(cmd->argv[i], "NoStrictKex") == 0) { ++ opts |= SFTP_OPT_NO_STRICT_KEX; ++ + } else { + CONF_ERROR(cmd, pstrcat(cmd->tmp_pool, ": unknown SFTPOption '", + cmd->argv[i], "'", NULL)); +diff --git a/contrib/mod_sftp/mod_sftp.h.in b/contrib/mod_sftp/mod_sftp.h.in +index 065981c31..adcf71276 100644 +--- a/contrib/mod_sftp/mod_sftp.h.in ++++ b/contrib/mod_sftp/mod_sftp.h.in +@@ -131,6 +131,7 @@ + #define SFTP_OPT_IGNORE_SFTP_SET_XATTRS 0x04000 + #define SFTP_OPT_INCLUDE_SFTP_TIMES 0x08000 + #define SFTP_OPT_NO_EXT_INFO 0x10000 ++#define SFTP_OPT_NO_STRICT_KEX 0x040000 + + /* mod_sftp service flags */ + #define SFTP_SERVICE_FL_SFTP 0x0001 +diff --git a/contrib/mod_sftp/packet.c b/contrib/mod_sftp/packet.c +index b0067ea80..d8c97e92b 100644 +--- a/contrib/mod_sftp/packet.c ++++ b/contrib/mod_sftp/packet.c +@@ -1742,6 +1742,18 @@ int sftp_ssh2_packet_rekey_set_size(off_t size) { + return 0; + } + ++uint32_t sftp_ssh2_packet_get_client_seqno(void) { ++ return packet_client_seqno; ++} ++ ++void sftp_ssh2_packet_reset_client_seqno(void) { ++ packet_client_seqno = 0; ++} ++ ++void sftp_ssh2_packet_reset_server_seqno(void) { ++ packet_server_seqno = 0; ++} ++ + int sftp_ssh2_packet_send_version(void) { + if (!sent_version_id) { + int res; +diff --git a/contrib/mod_sftp/packet.h b/contrib/mod_sftp/packet.h +index a424e9b25..fe538cbd7 100644 +--- a/contrib/mod_sftp/packet.h ++++ b/contrib/mod_sftp/packet.h +@@ -1,6 +1,6 @@ + /* + * ProFTPD - mod_sftp packet IO +- * Copyright (c) 2008-2020 TJ Saunders ++ * Copyright (c) 2008-2023 TJ Saunders + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by +@@ -107,6 +107,13 @@ int sftp_ssh2_packet_rekey_reset(void); + int sftp_ssh2_packet_rekey_set_seqno(uint32_t); + int sftp_ssh2_packet_rekey_set_size(off_t); + ++/* These are used for implementing the "strict KEX" mitigations of the Terrapin ++ * attack (Issue 1760). ++ */ ++uint32_t sftp_ssh2_packet_get_client_seqno(void); ++void sftp_ssh2_packet_reset_client_seqno(void); ++void sftp_ssh2_packet_reset_server_seqno(void); ++ + int sftp_ssh2_packet_send_version(void); + int sftp_ssh2_packet_set_poll_timeout(int); + int sftp_ssh2_packet_set_version(const char *); +diff --git a/contrib/mod_sftp/tap.c b/contrib/mod_sftp/tap.c +index 95f388e43..7eaf959e2 100644 +--- a/contrib/mod_sftp/tap.c ++++ b/contrib/mod_sftp/tap.c +@@ -1,6 +1,6 @@ + /* + * ProFTPD - mod_sftp traffic analysis protection +- * Copyright (c) 2008-2016 TJ Saunders ++ * Copyright (c) 2008-2023 TJ Saunders + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by +@@ -149,7 +149,6 @@ static void set_policy_chance(struct sftp_tap_policy *policy) { + } + + static void set_policy_timer(struct sftp_tap_policy *policy) { +- + /* Start a timer which checks the last times we received and sent packets. + * From there, we may want to inject a TAP message, depending on the + * policy. +@@ -177,6 +176,16 @@ int sftp_tap_send_packet(void) { + int rnd; + unsigned int chance; + ++ /* Due to chances of violating client-side "strict KEX" Terrapin ++ * mitigations, we will not send packets if we are in the middle of a KEX. ++ */ ++ if (!(sftp_sess_state & SFTP_SESS_STATE_HAVE_KEX) || ++ (sftp_sess_state & SFTP_SESS_STATE_REKEYING)) { ++ pr_trace_msg(trace_channel, 11, ++ "unwilling to send TAP packet during KEX"); ++ return 0; ++ } ++ + if (!sftp_interop_supports_feature(SFTP_SSH2_FEAT_IGNORE_MSG)) { + pr_trace_msg(trace_channel, 3, + "unable to send TAP packet: IGNORE not supported by client"); +@@ -205,7 +214,7 @@ int sftp_tap_send_packet(void) { + struct ssh2_packet *pkt; + unsigned int max_datalen = 8192; + +- if (curr_policy.max_datalen) { ++ if (curr_policy.max_datalen > 0) { + max_datalen = curr_policy.max_datalen; + } + +@@ -246,15 +255,15 @@ int sftp_tap_send_packet(void) { + int sftp_tap_set_policy(const char *policy) { + register unsigned int i; + +- if (tap_pool) { ++ if (tap_pool != NULL) { + + /* Special case: IFF the existing policy is 'none' AND the given + * policy is 'rogaway', just return. The 'none' policy must have been + * explicitly configured, and it should override the automatic use of + * the 'rogaway' policy. + */ +- if (strncmp(curr_policy.policy, "none", 5) == 0 && +- strncasecmp(policy, "rogaway", 8) == 0) { ++ if (strcasecmp(curr_policy.policy, "none") == 0 && ++ strcasecmp(policy, "rogaway") == 0) { + (void) pr_log_writefile(sftp_logfd, MOD_SFTP_VERSION, + "'none' traffic policy explicitly configured, ignoring '%s' policy", + policy); +@@ -278,7 +287,6 @@ int sftp_tap_set_policy(const char *policy) { + if (strcasecmp(tap_policies[i].policy, policy) == 0) { + copy_policy(&curr_policy, &(tap_policies[i])); + set_policy_chance(&curr_policy); +- set_policy_timer(&curr_policy); + return 0; + } + } +@@ -286,3 +294,7 @@ int sftp_tap_set_policy(const char *policy) { + errno = ENOENT; + return -1; + } ++ ++void sftp_tap_start_policy(void) { ++ set_policy_timer(&curr_policy); ++} +diff --git a/contrib/mod_sftp/tap.h b/contrib/mod_sftp/tap.h +index 4a4c065d2..312223595 100644 +--- a/contrib/mod_sftp/tap.h ++++ b/contrib/mod_sftp/tap.h +@@ -1,6 +1,6 @@ + /* + * ProFTPD - mod_sftp traffic analysis protection +- * Copyright (c) 2008-2016 TJ Saunders ++ * Copyright (c) 2008-2013 TJ Saunders + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by +@@ -63,4 +63,7 @@ int sftp_tap_send_packet(void); + */ + int sftp_tap_set_policy(const char *); + ++/* Sets the configured TAP policy in motion. */ ++void sftp_tap_start_policy(void); ++ + #endif /* MOD_SFTP_TAP_H */ +diff --git a/doc/contrib/mod_sftp.html b/doc/contrib/mod_sftp.html +index 60c3436fa..cfc639d05 100644 +--- a/doc/contrib/mod_sftp.html ++++ b/doc/contrib/mod_sftp.html +@@ -1186,6 +1186,19 @@ The currently implemented options are: + proftpd-1.3.7rc4. + + ++

++

  • NoStrictKex
    ++

    ++ By default, mod_sftp will honor/support the OpenSSH ++ "strict KEX" mode extension, "kex-strict-c-v00@openssh.com" and ++ "kex-strict-s-v00@openssh.com". Use this option to disable support for ++ these custom OpenSSH extensions. ++ ++

    ++ Note that this option first appeared in ++ proftpd-1.3.9rc1. ++

    • ++ +

    +

  • OldProtocolCompat
    +

    +@@ -2642,7 +2655,7 @@ deal with this issue, then, you can hopefully upgrade to ProFTPD 1.3.6 or later, +

    +

    + +-© Copyright 2008-2021 TJ Saunders
    ++© Copyright 2008-2023 TJ Saunders
    + All Rights Reserved
    +     +
    +diff --git a/tests/t/lib/ProFTPD/Tests/Modules/mod_sftp.pm b/tests/t/lib/ProFTPD/Tests/Modules/mod_sftp.pm +index b4bdf516b..8c2be5465 100644 +--- a/tests/t/lib/ProFTPD/Tests/Modules/mod_sftp.pm ++++ b/tests/t/lib/ProFTPD/Tests/Modules/mod_sftp.pm +@@ -87,6 +87,11 @@ my $TESTS = { + test_class => [qw(forking ssh2)], + }, + ++ ssh2_ext_kex_strict_terrapin_issue1760 => { ++ order => ++$order, ++ test_class => [qw(bug forking ssh2)], ++ }, ++ + ssh2_hostkey_rsa => { + order => ++$order, + test_class => [qw(forking ssh2)], +@@ -3885,6 +3890,218 @@ EOC + unlink($log_file); + } + ++sub ssh2_ext_kex_strict_terrapin_issue1760 { ++ my $self = shift; ++ my $tmpdir = $self->{tmpdir}; ++ my $setup = test_setup($tmpdir, 'sftp'); ++ ++ my $rsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_rsa_key'); ++ my $dsa_host_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/ssh_host_dsa_key'); ++ ++ my $rsa_priv_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key'); ++ my $rsa_pub_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/test_rsa_key.pub'); ++ my $rsa_rfc4716_key = File::Spec->rel2abs('t/etc/modules/mod_sftp/authorized_rsa_keys'); ++ ++ my $authorized_keys = File::Spec->rel2abs("$tmpdir/.authorized_keys"); ++ unless (copy($rsa_rfc4716_key, $authorized_keys)) { ++ die("Can't copy $rsa_rfc4716_key to $authorized_keys: $!"); ++ } ++ ++ my $ssh_config = File::Spec->rel2abs("$tmpdir/ssh.conf"); ++ if (open(my $fh, "> $ssh_config")) { ++ print $fh <rel2abs("$tmpdir/sftp-batch.conf"); ++ if (open(my $fh, "> $batch_file")) { ++ print $fh "ls -l\n"; ++ ++ unless (close($fh)) { ++ die("Can't write $batch_file: $!"); ++ } ++ ++ } else { ++ die("Can't open $batch_file: $!"); ++ } ++ ++ my $config = { ++ PidFile => $setup->{pid_file}, ++ ScoreboardFile => $setup->{scoreboard_file}, ++ SystemLog => $setup->{log_file}, ++ TraceLog => $setup->{log_file}, ++ Trace => 'ssh2:30 sftp:20 scp:20', ++ ++ AuthUserFile => $setup->{auth_user_file}, ++ AuthGroupFile => $setup->{auth_group_file}, ++ AuthOrder => 'mod_auth_file.c', ++ ++ IfModules => { ++ 'mod_delay.c' => { ++ DelayEngine => 'off', ++ }, ++ ++ 'mod_sftp.c' => [ ++ "SFTPEngine on", ++ "SFTPLog $setup->{log_file}", ++ ++ "SFTPHostKey $rsa_host_key", ++ "SFTPHostKey $dsa_host_key", ++ ++ "SFTPAuthorizedUserKeys file:~/.authorized_keys", ++ ], ++ }, ++ }; ++ ++ my ($port, $config_user, $config_group) = config_write($setup->{config_file}, ++ $config); ++ ++ # Open pipes, for use between the parent and child processes. Specifically, ++ # the child will indicate when it's done with its test by writing a message ++ # to the parent. ++ my ($rfh, $wfh); ++ unless (pipe($rfh, $wfh)) { ++ die("Can't open pipe: $!"); ++ } ++ ++ require Net::SSH2; ++ ++ my $ex; ++ ++ # Fork child ++ $self->handle_sigchld(); ++ defined(my $pid = fork()) or die("Can't fork: $!"); ++ if ($pid) { ++ eval { ++ # We use OpenSSH-9.6p1 to test our "strict KEX" Terrapin mitigations. ++ my $sftp = '/Users/tj/local/openssh-9.6p1/bin/sftp'; ++ ++ my @cmd = ( ++ $sftp, ++ '-F', ++ $ssh_config, ++ '-oBatchMode=yes', ++ '-oCheckHostIP=no', ++ '-oCompression=yes', ++ "-oPort=$port", ++ "-oIdentityFile=$rsa_priv_key", ++ '-oPubkeyAuthentication=yes', ++ '-oStrictHostKeyChecking=no', ++ '-oUserKnownHostsFile=/dev/null', ++ '-vvv', ++ '-b', ++ $batch_file, ++ "$setup->{user}\@127.0.0.1", ++ ); ++ ++ my $sftp_rh = IO::Handle->new(); ++ my $sftp_wh = IO::Handle->new(); ++ my $sftp_eh = IO::Handle->new(); ++ ++ $sftp_wh->autoflush(1); ++ ++ sleep(1); ++ ++ local $SIG{CHLD} = 'DEFAULT'; ++ ++ # Make sure that the perms on the priv key are what OpenSSH wants ++ unless (chmod(0400, $rsa_priv_key)) { ++ die("Can't set perms on $rsa_priv_key to 0400: $!"); ++ } ++ ++ if ($ENV{TEST_VERBOSE}) { ++ print STDERR "Executing: ", join(' ', @cmd), "\n"; ++ } ++ ++ my $sftp_pid = open3($sftp_wh, $sftp_rh, $sftp_eh, @cmd); ++ waitpid($sftp_pid, 0); ++ my $exit_status = $?; ++ ++ # Restore the perms on the priv key ++ unless (chmod(0644, $rsa_priv_key)) { ++ die("Can't set perms on $rsa_priv_key to 0644: $!"); ++ } ++ ++ my ($res, $errstr); ++ if ($exit_status >> 8 == 0) { ++ $errstr = join('', <$sftp_eh>); ++ $res = 0; ++ ++ } else { ++ $errstr = join('', <$sftp_eh>); ++ if ($ENV{TEST_VERBOSE}) { ++ print STDERR "Stderr: $errstr\n"; ++ } ++ ++ $res = 1; ++ } ++ ++ unless ($res == 0) { ++ die("Can't list files on server: $errstr"); ++ } ++ }; ++ if ($@) { ++ $ex = $@; ++ } ++ ++ $wfh->print("done\n"); ++ $wfh->flush(); ++ ++ } else { ++ eval { server_wait($setup->{config_file}, $rfh) }; ++ if ($@) { ++ warn($@); ++ exit 1; ++ } ++ ++ exit 0; ++ } ++ ++ # Stop server ++ server_stop($setup->{pid_file}); ++ $self->assert_child_ok($pid); ++ ++ eval { ++ if (open(my $fh, "< $setup->{log_file}")) { ++ my $ok = 0; ++ ++ while (my $line = <$fh>) { ++ chomp($line); ++ ++ if ($ENV{TEST_VERBOSE}) { ++ print STDERR "# $line\n"; ++ } ++ ++ if ($line =~ /client signaled strict KEX support/) { ++ $ok = 1; ++ last; ++ } ++ } ++ ++ close($fh); ++ ++ $self->assert($ok, test_msg("Did not see expected 'strict KEX' TraceLog message")); ++ ++ } else { ++ die("Can't read $setup->{log_file}: $!"); ++ } ++ }; ++ if ($@) { ++ $ex = $@; ++ } ++ ++ test_cleanup($setup->{log_file}, $ex); ++} ++ + sub ssh2_hostkey_rsa { + my $self = shift; + my $tmpdir = $self->{tmpdir}; +-- +2.25.1 + diff --git a/meta-networking/recipes-daemons/proftpd/proftpd_1.3.7f.bb b/meta-networking/recipes-daemons/proftpd/proftpd_1.3.7f.bb index 312fe24387..9bfe9aed03 100644 --- a/meta-networking/recipes-daemons/proftpd/proftpd_1.3.7f.bb +++ b/meta-networking/recipes-daemons/proftpd/proftpd_1.3.7f.bb @@ -17,6 +17,7 @@ SRC_URI = "git://github.com/proftpd/proftpd.git;branch=${BRANCH};protocol=https file://proftpd.service \ file://CVE-2023-51713.patch \ file://CVE-2024-57392.patch \ + file://CVE-2023-48795.patch \ " S = "${WORKDIR}/git"