* sec_auth.cc (get_token_group_sidlist): Add CONSOLE LOGON SID on
systems supporting it. Never add SERVICE SID but keep code in for future reference. Explain why. (get_priv_list): Add cygpsid pointer parameter. Point it to the mandatory integrity SID which matches account and privileges. (create_token): Fetch mandatory integrity SID from call to get_priv_list. (lsaauth): Call get_priv_list with additional NULL pointer. Change comment accordingly. * sec_helper.cc (well_known_console_logon_sid): New static SID. (cygpriv): Change to structure containing extra flag to store info about required integrity level. (privilege_luid): Accommodate changes to cygpriv. Return integrity level in new high_integrity parameter. (privilege_name): Accommodate changes to cygpriv. (set_privilege): Drop trailing \n from debug output. (set_cygwin_privileges): Don't set SE_CREATE_GLOBAL_PRIVILEGE anymore since it's just not needed, but keep code in for future reference. Change comment accordingly. * security.h (well_known_console_logon_sid): Declare. (privilege_luid): Align declaration to above change. * wincap.h (wincaps::has_console_logon_sid): New element. * wincap.cc: Implement above element throughout.
This commit is contained in:
Corinna Vinschen
@ -37,6 +37,8 @@ MKSID (well_known_world_sid, "S-1-1-0",
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SECURITY_WORLD_SID_AUTHORITY, 1, SECURITY_WORLD_RID);
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MKSID (well_known_local_sid, "S-1-2-0",
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SECURITY_LOCAL_SID_AUTHORITY, 1, SECURITY_LOCAL_RID);
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MKSID (well_known_console_logon_sid, "S-1-2-1",
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SECURITY_LOCAL_SID_AUTHORITY, 1, 1);
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MKSID (well_known_creator_owner_sid, "S-1-3-0",
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SECURITY_CREATOR_SID_AUTHORITY, 1, SECURITY_CREATOR_OWNER_RID);
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MKSID (well_known_creator_group_sid, "S-1-3-1",
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@ -331,58 +333,64 @@ security_descriptor::free ()
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#undef TEXT
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#define TEXT(q) L##q
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/* Index must match the correspoding foo_PRIVILEGE value, see security.h. */
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static const wchar_t *cygpriv[] =
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/* Index must match the corresponding foo_PRIVILEGE value, see security.h. */
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static const struct {
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const wchar_t *name;
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bool high_integrity; /* UAC: High Mandatory Label required to
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be allowed to enable this privilege in
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the user token. */
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} cygpriv[] =
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{
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L"",
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L"",
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SE_CREATE_TOKEN_NAME,
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SE_ASSIGNPRIMARYTOKEN_NAME,
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SE_LOCK_MEMORY_NAME,
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SE_INCREASE_QUOTA_NAME,
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SE_MACHINE_ACCOUNT_NAME,
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SE_TCB_NAME,
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SE_SECURITY_NAME,
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SE_TAKE_OWNERSHIP_NAME,
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SE_LOAD_DRIVER_NAME,
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SE_SYSTEM_PROFILE_NAME,
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SE_SYSTEMTIME_NAME,
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SE_PROF_SINGLE_PROCESS_NAME,
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SE_INC_BASE_PRIORITY_NAME,
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SE_CREATE_PAGEFILE_NAME,
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SE_CREATE_PERMANENT_NAME,
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SE_BACKUP_NAME,
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SE_RESTORE_NAME,
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SE_SHUTDOWN_NAME,
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SE_DEBUG_NAME,
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SE_AUDIT_NAME,
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SE_SYSTEM_ENVIRONMENT_NAME,
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SE_CHANGE_NOTIFY_NAME,
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SE_REMOTE_SHUTDOWN_NAME,
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SE_UNDOCK_NAME,
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SE_SYNC_AGENT_NAME,
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SE_ENABLE_DELEGATION_NAME,
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SE_MANAGE_VOLUME_NAME,
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SE_IMPERSONATE_NAME,
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SE_CREATE_GLOBAL_NAME,
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SE_TRUSTED_CREDMAN_ACCESS_NAME,
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SE_RELABEL_NAME,
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SE_INCREASE_WORKING_SET_NAME,
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SE_TIME_ZONE_NAME,
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SE_CREATE_SYMBOLIC_LINK_NAME
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{ L"", false },
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{ L"", false },
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{ SE_CREATE_TOKEN_NAME, true },
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{ SE_ASSIGNPRIMARYTOKEN_NAME, true },
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{ SE_LOCK_MEMORY_NAME, false },
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{ SE_INCREASE_QUOTA_NAME, true },
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{ SE_MACHINE_ACCOUNT_NAME, false },
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{ SE_TCB_NAME, true },
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{ SE_SECURITY_NAME, true },
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{ SE_TAKE_OWNERSHIP_NAME, true },
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{ SE_LOAD_DRIVER_NAME, true },
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{ SE_SYSTEM_PROFILE_NAME, true },
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{ SE_SYSTEMTIME_NAME, true },
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{ SE_PROF_SINGLE_PROCESS_NAME, true },
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{ SE_INC_BASE_PRIORITY_NAME, true },
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{ SE_CREATE_PAGEFILE_NAME, true },
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{ SE_CREATE_PERMANENT_NAME, false },
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{ SE_BACKUP_NAME, true },
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{ SE_RESTORE_NAME, true },
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{ SE_SHUTDOWN_NAME, false },
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{ SE_DEBUG_NAME, true },
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{ SE_AUDIT_NAME, false },
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{ SE_SYSTEM_ENVIRONMENT_NAME, true },
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{ SE_CHANGE_NOTIFY_NAME, false },
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{ SE_REMOTE_SHUTDOWN_NAME, true },
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{ SE_UNDOCK_NAME, false },
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{ SE_SYNC_AGENT_NAME, false },
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{ SE_ENABLE_DELEGATION_NAME, false },
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{ SE_MANAGE_VOLUME_NAME, true },
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{ SE_IMPERSONATE_NAME, true },
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{ SE_CREATE_GLOBAL_NAME, false },
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{ SE_TRUSTED_CREDMAN_ACCESS_NAME, false },
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{ SE_RELABEL_NAME, true },
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{ SE_INCREASE_WORKING_SET_NAME, false },
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{ SE_TIME_ZONE_NAME, true },
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{ SE_CREATE_SYMBOLIC_LINK_NAME, true }
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};
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bool
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privilege_luid (const PWCHAR pname, LUID *luid)
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privilege_luid (const PWCHAR pname, LUID &luid, bool &high_integrity)
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{
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ULONG idx;
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for (idx = SE_CREATE_TOKEN_PRIVILEGE;
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idx <= SE_MAX_WELL_KNOWN_PRIVILEGE;
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++idx)
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if (!wcscmp (cygpriv[idx], pname))
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if (!wcscmp (cygpriv[idx].name, pname))
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{
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luid->HighPart = 0;
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luid->LowPart = idx;
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luid.HighPart = 0;
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luid.LowPart = idx;
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high_integrity = cygpriv[idx].high_integrity;
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return true;
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}
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return false;
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@ -394,7 +402,7 @@ privilege_name (const LUID &priv_luid)
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if (priv_luid.HighPart || priv_luid.LowPart < SE_CREATE_TOKEN_PRIVILEGE
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|| priv_luid.LowPart > SE_MAX_WELL_KNOWN_PRIVILEGE)
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return L"<unknown privilege>";
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return cygpriv[priv_luid.LowPart];
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return cygpriv[priv_luid.LowPart].name;
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}
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int
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@ -426,7 +434,7 @@ set_privilege (HANDLE token, DWORD privilege, bool enable)
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out:
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if (ret < 0)
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debug_printf ("%d = set_privilege ((token %x) %W, %d)\n", ret, token,
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debug_printf ("%d = set_privilege ((token %x) %W, %d)", ret, token,
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privilege_name (new_priv.Privileges[0].Luid), enable);
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return ret;
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}
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@ -444,12 +452,13 @@ set_cygwin_privileges (HANDLE token)
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set_privilege (token, SE_BACKUP_PRIVILEGE, true);
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/* Allow full access to other user's processes. */
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set_privilege (token, SE_DEBUG_PRIVILEGE, true);
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/* Allow to create global shared memory. This shouldn't be required since
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#if 0
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/* Allow to create global shared memory. This isn't required anymore since
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Cygwin 1.7. It uses its own subdirectories in the global NT namespace
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which isn't affected by the SE_CREATE_GLOBAL_PRIVILEGE restriction.
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Anyway, better safe than sorry. */
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which isn't affected by the SE_CREATE_GLOBAL_PRIVILEGE restriction. */
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if (wincap.has_create_global_privilege ())
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set_privilege (token, SE_CREATE_GLOBAL_PRIVILEGE, true);
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#endif
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}
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/* Function to return a common SECURITY_DESCRIPTOR that
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