e8b9919265
- Fix preauth seccomp separation on mainframes (bsc#1016709) [openssh-7.2p2-s390_hw_crypto_syscalls.patch] [openssh-7.2p2-s390_OpenSSL-ibmpkcs11_syscalls.patch] - enable case-insensitive hostname matching (bsc#1017099) [openssh-7.2p2-ssh_case_insensitive_host_matching.patch] - add CAVS tests [openssh-7.2p2-cavstest-ctr.patch] [openssh-7.2p2-cavstest-kdf.patch] - Adding missing pieces for user matching (bsc#1021626) - Properly verify CIDR masks in configuration (bsc#1005893) [openssh-7.2p2-verify_CIDR_address_ranges.patch] - Remove pre-auth compression support from the server to prevent possible cryptographic attacks. (CVE-2016-10012, bsc#1016370) [openssh-7.2p2-disable_preauth_compression.patch] - limit directories for loading PKCS11 modules (CVE-2016-10009, bsc#1016366) [openssh-7.2p2-restrict_pkcs11-modules.patch] - Prevent possible leaks of host private keys to low-privilege process handling authentication (CVE-2016-10011, bsc#1016369) [openssh-7.2p2-prevent_private_key_leakage.patch] - Do not allow unix socket forwarding when running without privilege separation (CVE-2016-10010, bsc#1016368) [openssh-7.2p2-secure_unix_sockets_forwarding.patch] - prevent resource depletion during key exchange (bsc#1005480, CVE-2016-8858) [openssh-7.2p2-kex_resource_depletion.patch] OBS-URL: https://build.opensuse.org/request/show/500279 OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=117
117 lines
3.5 KiB
Diff
117 lines
3.5 KiB
Diff
# HG changeset patch
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# Parent e6ff441d171012183f7bd37cb7399473e8376acd
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Audit PRNG re-seeding
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diff --git a/openssh-7.2p2/audit-bsm.c b/openssh-7.2p2/audit-bsm.c
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--- a/openssh-7.2p2/audit-bsm.c
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+++ b/openssh-7.2p2/audit-bsm.c
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@@ -504,9 +504,15 @@ audit_destroy_sensitive_data(const char
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/* not implemented */
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}
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void
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audit_generate_ephemeral_server_key(const char *fp)
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{
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/* not implemented */
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}
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+
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+void
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+audit_linux_prng_seed(long bytes, const char *rf)
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+{
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+ /* not implemented */
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+}
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#endif /* BSM */
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diff --git a/openssh-7.2p2/audit-linux.c b/openssh-7.2p2/audit-linux.c
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--- a/openssh-7.2p2/audit-linux.c
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+++ b/openssh-7.2p2/audit-linux.c
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@@ -402,9 +402,31 @@ audit_generate_ephemeral_server_key(cons
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}
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audit_ok = audit_log_user_message(audit_fd, AUDIT_CRYPTO_KEY_USER,
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buf, NULL, 0, NULL, 1);
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audit_close(audit_fd);
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/* do not abort if the error is EPERM and sshd is run as non root user */
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if ((audit_ok < 0) && ((audit_ok != -1) || (getuid() == 0)))
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error("cannot write into audit");
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}
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+
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+void
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+audit_linux_prng_seed(long bytes, const char *rf)
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+{
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+ char buf[AUDIT_LOG_SIZE];
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+ int audit_fd, audit_ok;
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+
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+ snprintf(buf, sizeof(buf), "op=prng_seed kind=server bytes=%li source=%s ", bytes, rf);
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+ audit_fd = audit_open();
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+ if (audit_fd < 0) {
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+ if (errno != EINVAL && errno != EPROTONOSUPPORT &&
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+ errno != EAFNOSUPPORT)
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+ error("cannot open audit");
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+ return;
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+ }
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+ audit_ok = audit_log_user_message(audit_fd, AUDIT_CRYPTO_PARAM_CHANGE_USER,
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+ buf, NULL, 0, NULL, 1);
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+ audit_close(audit_fd);
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+ /* do not abort if the error is EPERM and sshd is run as non root user */
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+ if ((audit_ok < 0) && ((audit_ok != -1) || (getuid() == 0)))
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+ error("cannot write into audit");
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+}
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#endif /* USE_LINUX_AUDIT */
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diff --git a/openssh-7.2p2/audit.c b/openssh-7.2p2/audit.c
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--- a/openssh-7.2p2/audit.c
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+++ b/openssh-7.2p2/audit.c
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@@ -304,10 +304,16 @@ audit_destroy_sensitive_data(const char
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/*
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* This will be called on generation of the ephemeral server key
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*/
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void
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audit_generate_ephemeral_server_key(const char *)
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{
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debug("audit create ephemeral server key euid %d fingerprint %s", geteuid(), fp);
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}
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+
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+void
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+audit_linux_prng_seed(long bytes, const char *rf)
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+{
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+ debug("audit PRNG seed euid %d bytes %li source %s", geteuid(), bytes, rf);
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+}
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# endif /* !defined CUSTOM_SSH_AUDIT_EVENTS */
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#endif /* SSH_AUDIT_EVENTS */
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diff --git a/openssh-7.2p2/audit.h b/openssh-7.2p2/audit.h
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--- a/openssh-7.2p2/audit.h
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+++ b/openssh-7.2p2/audit.h
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@@ -69,10 +69,11 @@ void audit_key(int, int *, const Key *);
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void audit_unsupported(int);
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void audit_kex(int, char *, char *, char *, char *);
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void audit_unsupported_body(int);
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void audit_kex_body(int, char *, char *, char *, char *, pid_t, uid_t);
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void audit_session_key_free(int ctos);
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void audit_session_key_free_body(int ctos, pid_t, uid_t);
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void audit_destroy_sensitive_data(const char *, pid_t, uid_t);
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void audit_generate_ephemeral_server_key(const char *);
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+void audit_linux_prng_seed(long, const char *);
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#endif /* _SSH_AUDIT_H */
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diff --git a/openssh-7.2p2/sshd.c b/openssh-7.2p2/sshd.c
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--- a/openssh-7.2p2/sshd.c
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+++ b/openssh-7.2p2/sshd.c
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@@ -1421,16 +1421,19 @@ server_accept_loop(int *sock_in, int *so
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if (maxfd < startup_p[0])
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maxfd = startup_p[0];
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startups++;
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break;
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}
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if(!(--re_seeding_counter)) {
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re_seeding_counter = RESEED_AFTER;
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linux_seed();
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+#ifdef SSH_AUDIT_EVENTS
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+ audit_linux_prng_seed(rand_bytes, rand_file);
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+#endif
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}
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/*
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* Got connection. Fork a child to handle it, unless
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* we are in debugging mode.
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*/
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if (debug_flag) {
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/*
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