diff options
Diffstat (limited to 'src/VBox/Runtime/common/crypto/spc-sanity.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/crypto/spc-sanity.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/crypto/spc-sanity.cpp b/src/VBox/Runtime/common/crypto/spc-sanity.cpp new file mode 100644 index 00000000..3c6aadbc --- /dev/null +++ b/src/VBox/Runtime/common/crypto/spc-sanity.cpp @@ -0,0 +1,179 @@ +/* $Id: spc-sanity.cpp $ */ +/** @file + * IPRT - Crypto - Microsoft SPC / Authenticode, Sanity Checkers. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * 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 the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "internal/iprt.h" +#include <iprt/crypto/spc.h> + +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/uuid.h> + +#include "spc-internal.h" + + +RTDECL(int) RTCrSpcIndirectDataContent_CheckSanityEx(PCRTCRSPCINDIRECTDATACONTENT pIndData, + PCRTCRPKCS7SIGNEDDATA pSignedData, + uint32_t fFlags, + PRTERRINFO pErrInfo) +{ + /* + * Match up the digest algorithms (page 8, v1.0). + */ + if (pSignedData->SignerInfos.cItems != 1) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_NOT_EXACTLY_ONE_SIGNER_INFOS, + "SpcIndirectDataContent expects SignedData to have exactly one SignerInfos entries, found: %u", + pSignedData->SignerInfos.cItems); + if (pSignedData->DigestAlgorithms.cItems != 1) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_NOT_EXACTLY_ONE_DIGEST_ALGO, + "SpcIndirectDataContent expects SignedData to have exactly one DigestAlgorithms entries, found: %u", + pSignedData->DigestAlgorithms.cItems); + + if (RTCrX509AlgorithmIdentifier_Compare(&pIndData->DigestInfo.DigestAlgorithm, /** @todo not entirely sure about this check... */ + &pSignedData->SignerInfos.papItems[0]->DigestAlgorithm) != 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_SIGNED_IND_DATA_DIGEST_ALGO_MISMATCH, + "SpcIndirectDataContent DigestInfo and SignerInfos algorithms mismatch: %s vs %s", + pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId, + pSignedData->SignerInfos.papItems[0]->DigestAlgorithm.Algorithm.szObjId); + + if (RTCrX509AlgorithmIdentifier_Compare(&pIndData->DigestInfo.DigestAlgorithm, + pSignedData->DigestAlgorithms.papItems[0]) != 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_IND_DATA_DIGEST_ALGO_NOT_IN_DIGEST_ALGOS, + "SpcIndirectDataContent DigestInfo and SignedData.DigestAlgorithms[0] mismatch: %s vs %s", + pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId, + pSignedData->DigestAlgorithms.papItems[0]->Algorithm.szObjId); + + if (fFlags & RTCRSPCINDIRECTDATACONTENT_SANITY_F_ONLY_KNOWN_HASH) + { + if ( RTCrX509AlgorithmIdentifier_GetDigestType(&pIndData->DigestInfo.DigestAlgorithm, true /*fPureDigestsOnly*/) + == RTDIGESTTYPE_INVALID) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_UNKNOWN_DIGEST_ALGO, + "SpcIndirectDataContent DigestAlgortihm is not known: %s", + pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId); + } + + uint32_t cbDigest = RTCrX509AlgorithmIdentifier_GetDigestSize(&pIndData->DigestInfo.DigestAlgorithm, + true /*fPureDigestsOnly*/); + if ( pIndData->DigestInfo.Digest.Asn1Core.cb != cbDigest + && (cbDigest != UINT32_MAX || (fFlags & RTCRSPCINDIRECTDATACONTENT_SANITY_F_ONLY_KNOWN_HASH))) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_IND_DATA_DIGEST_SIZE_MISMATCH, + "SpcIndirectDataContent Digest size mismatch with algorithm: %u, expected %u (%s)", + pIndData->DigestInfo.Digest.Asn1Core.cb, cbDigest, + pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId); + + /* + * Data. + */ + if (fFlags & RTCRSPCINDIRECTDATACONTENT_SANITY_F_PE_IMAGE) + { + if ( pIndData->Data.enmType != RTCRSPCAAOVTYPE_PE_IMAGE_DATA + || RTAsn1ObjId_CompareWithString(&pIndData->Data.Type, RTCRSPCPEIMAGEDATA_OID) != 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_EXPECTED_PE_IMAGE_DATA, + "SpcIndirectDataContent.Data.Type is %s, expected %s (SpcPeImageData) [enmType=%d]", + pIndData->Data.Type.szObjId, RTCRSPCPEIMAGEDATA_OID, pIndData->Data.enmType); + if ( pIndData->Data.uValue.pPeImage + || !RTCrSpcPeImageData_IsPresent(pIndData->Data.uValue.pPeImage) ) + return RTErrInfoSet(pErrInfo, VERR_CR_SPC_PEIMAGE_DATA_NOT_PRESENT, + "SpcIndirectDataContent.Data.uValue/PEImage is missing"); + + if ( pIndData->Data.uValue.pPeImage->T0.File.enmChoice == RTCRSPCLINKCHOICE_MONIKER + && RTCrSpcSerializedObject_IsPresent(pIndData->Data.uValue.pPeImage->T0.File.u.pMoniker) ) + { + PCRTCRSPCSERIALIZEDOBJECT pObj = pIndData->Data.uValue.pPeImage->T0.File.u.pMoniker; + + if (pObj->Uuid.Asn1Core.cb != sizeof(RTUUID)) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_BAD_MONIKER_UUID, + "SpcIndirectDataContent...MonikerT1.Uuid incorrect size: %u, expected %u.", + pObj->Uuid.Asn1Core.cb, sizeof(RTUUID)); + if (RTUuidCompareStr(pObj->Uuid.Asn1Core.uData.pUuid, RTCRSPCSERIALIZEDOBJECT_UUID_STR) != 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_UNKNOWN_MONIKER_UUID, + "SpcIndirectDataContent...MonikerT1.Uuid mismatch: %RTuuid, expected %s.", + pObj->Uuid.Asn1Core.uData.pUuid, RTCRSPCSERIALIZEDOBJECT_UUID_STR); + + if (pObj->enmType != RTCRSPCSERIALIZEDOBJECTTYPE_ATTRIBUTES) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_BAD_MONIKER_CHOICE, + "SpcIndirectDataContent...pMoniker->enmType=%d, expected %d.", + pObj->enmType, RTCRSPCSERIALIZEDOBJECTTYPE_ATTRIBUTES); + if (!pObj->u.pData) + return RTErrInfoSet(pErrInfo, VERR_CR_SPC_MONIKER_BAD_DATA, + "SpcIndirectDataContent...pMoniker->pData is NULL."); + + uint32_t cPageHashTabs = 0; + for (uint32_t i = 0; i < pObj->u.pData->cItems; i++) + { + PCRTCRSPCSERIALIZEDOBJECTATTRIBUTE pAttr = pObj->u.pData->papItems[i]; + if ( RTAsn1ObjId_CompareWithString(&pAttr->Type, RTCRSPC_PE_IMAGE_HASHES_V1_OID) == 0 + || RTAsn1ObjId_CompareWithString(&pAttr->Type, RTCRSPC_PE_IMAGE_HASHES_V2_OID) == 0 ) + { + cPageHashTabs++; + AssertPtr(pAttr->u.pPageHashes->pData); + } + else + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_PEIMAGE_UNKNOWN_ATTRIBUTE, + "SpcIndirectDataContent...MonikerT1 unknown attribute %u: %s.", + i, pAttr->Type.szObjId); + } + if (cPageHashTabs > 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_PEIMAGE_MULTIPLE_HASH_TABS, + "SpcIndirectDataContent...MonikerT1 multiple page hash attributes (%u).", cPageHashTabs); + + } + else if ( pIndData->Data.uValue.pPeImage->T0.File.enmChoice == RTCRSPCLINKCHOICE_FILE + && RTCrSpcString_IsPresent(&pIndData->Data.uValue.pPeImage->T0.File.u.pT2->File) ) + { + /* Could check for "<<<Obsolete>>>" here, but it's really irrelevant. */ + } + else if ( pIndData->Data.uValue.pPeImage->T0.File.enmChoice == RTCRSPCLINKCHOICE_URL + && RTAsn1String_IsPresent(pIndData->Data.uValue.pPeImage->T0.File.u.pUrl) ) + return RTErrInfoSet(pErrInfo, VERR_CR_SPC_PEIMAGE_URL_UNEXPECTED, + "SpcIndirectDataContent.Data.uValue.pPeImage->File is an URL, expected object Moniker or File."); + else + return RTErrInfoSet(pErrInfo, VERR_CR_SPC_PEIMAGE_NO_CONTENT, + "SpcIndirectDataContent.Data.uValue.pPeImage->File has no content"); + } + + return VINF_SUCCESS; +} + + +/* + * Generate the standard core code. + */ +#include <iprt/asn1-generator-sanity.h> + |