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ID

VAR-201706-0816


CVE

CVE-2017-7563


TITLE

ARM Trusted Firmware In MT_EXECUTE_NEVER Vulnerabilities that circumvent protection mechanisms

Trust: 0.8

sources: JVNDB: JVNDB-2017-004723

DESCRIPTION

In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing attackers to bypass the MT_EXECUTE_NEVER protection mechanism. This issue occurs because of inconsistency in the number of execute-never bits (one bit versus two bits). Remote attackers can exploit this issue to bypass certain security restrictions and perform unauthorized actions. ARM Trusted Firmware through 1.3 are vulnerable; other versions may also be affected

Trust: 1.98

sources: NVD: CVE-2017-7563 // JVNDB: JVNDB-2017-004723 // BID: 99145 // VULHUB: VHN-115766

AFFECTED PRODUCTS

vendor:armmodel:trustedscope:eqversion:1.3

Trust: 1.7

vendor:armmodel:trustedscope:lteversion:1.3

Trust: 1.0

vendor:armmodel:trustedscope:eqversion:1.2

Trust: 0.3

vendor:armmodel:trustedscope:eqversion:1.1

Trust: 0.3

vendor:armmodel:trustedscope:eqversion:1.0

Trust: 0.3

sources: BID: 99145 // JVNDB: JVNDB-2017-004723 // CNNVD: CNNVD-201704-254 // NVD: CVE-2017-7563

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2017-7563
value: HIGH

Trust: 1.0

NVD: CVE-2017-7563
value: HIGH

Trust: 0.8

CNNVD: CNNVD-201704-254
value: HIGH

Trust: 0.6

VULHUB: VHN-115766
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2017-7563
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-115766
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2017-7563
baseSeverity: HIGH
baseScore: 8.1
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.2
impactScore: 5.9
version: 3.0

Trust: 1.8

sources: VULHUB: VHN-115766 // JVNDB: JVNDB-2017-004723 // CNNVD: CNNVD-201704-254 // NVD: CVE-2017-7563

PROBLEMTYPE DATA

problemtype:CWE-732

Trust: 1.1

problemtype:CWE-264

Trust: 0.9

sources: VULHUB: VHN-115766 // JVNDB: JVNDB-2017-004723 // NVD: CVE-2017-7563

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201704-254

TYPE

permissions and access control issues

Trust: 0.6

sources: CNNVD: CNNVD-201704-254

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2017-004723

PATCH
title:ARM Trusted Firmware Security Advisory TFV 3url:https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-3
Trust: 0.8
title:ARM Trusted Firmware Fixes for permission permissions and access control vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=100389
Trust: 0.6
sources:
            
            
            JVNDB: JVNDB-2017-004723 // 
            
            
            
            CNNVD: CNNVD-201704-254

EXTERNAL IDS
db:NVDid:CVE-2017-7563
Trust: 2.8
db:JVNDBid:JVNDB-2017-004723
Trust: 0.8
db:CNNVDid:CNNVD-201704-254
Trust: 0.7
db:BIDid:99145
Trust: 0.4
db:VULHUBid:VHN-115766
Trust: 0.1
sources:
            
            
            VULHUB: VHN-115766 // 
            
            
            
            BID: 99145 // 
            
            
            
            JVNDB: JVNDB-2017-004723 // 
            
            
            
            CNNVD: CNNVD-201704-254 // 
            
            
            
            NVD: CVE-2017-7563

REFERENCES
url:https://github.com/arm-software/arm-trusted-firmware/wiki/arm-trusted-firmware-security-advisory-tfv-3
Trust: 2.0
url:http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-7563
Trust: 0.8
url:https://nvd.nist.gov/vuln/detail/cve-2017-7563
Trust: 0.8
url:https://github.com/arm-software/arm-trusted-firmware
Trust: 0.3
url:https://github.com/arm-software/arm-trusted-firmware/pull/841
Trust: 0.3
sources:
            
            
            VULHUB: VHN-115766 // 
            
            
            
            BID: 99145 // 
            
            
            
            JVNDB: JVNDB-2017-004723 // 
            
            
            
            CNNVD: CNNVD-201704-254 // 
            
            
            
            NVD: CVE-2017-7563

CREDITS
The vendor reported this issue.
Trust: 0.3
sources:
            
            
            BID: 99145

SOURCES
db:VULHUBid:VHN-115766
db:BIDid:99145
db:JVNDBid:JVNDB-2017-004723
db:CNNVDid:CNNVD-201704-254
db:NVDid:CVE-2017-7563

LAST UPDATE DATE
2025-04-20T23:43:03.491000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-115766date:2019-10-03T00:00:00
db:BIDid:99145date:2017-06-07T00:00:00
db:JVNDBid:JVNDB-2017-004723date:2017-07-05T00:00:00
db:CNNVDid:CNNVD-201704-254date:2019-10-23T00:00:00
db:NVDid:CVE-2017-7563date:2025-04-20T01:37:25.860

SOURCES RELEASE DATE
db:VULHUBid:VHN-115766date:2017-06-07T00:00:00
db:BIDid:99145date:2017-06-07T00:00:00
db:JVNDBid:JVNDB-2017-004723date:2017-07-05T00:00:00
db:CNNVDid:CNNVD-201704-254date:2017-04-07T00:00:00
db:NVDid:CVE-2017-7563date:2017-06-07T15:29:00.177