Details of VAR-201807-0269

ID

VAR-201807-0269

CVE

CVE-2017-3225

TITLE

Das U-Boot AES-CBC encryption implementation contains multiple vulnerabilities

Trust: 0.8

sources: CERT/CC: VU#166743

DESCRIPTION

Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. For devices utilizing this environment encryption mode, U-Boot's use of a zero initialization vector may allow attacks against the underlying cryptographic implementation and allow an attacker to decrypt the data. Das U-Boot's AES-CBC encryption feature uses a zero (0) initialization vector. This allows an attacker to perform dictionary attacks on encrypted data produced by Das U-Boot to learn information about the encrypted data. Das U-Boot of AES-CBC Multiple vulnerabilities exist in cryptographic implementations. Information leakage due to differences in processing time (CWE-208) - CVE-2017-3226 Das U-Boot of AES-CBC The encryption process is deficient in the process when reading the encrypted environment variable. As a result, an attacker could decrypt the content on your device or possibly tamper with it.An attacker with access to the device may be able to decrypt the content on the device

Trust: 2.61

sources: NVD: CVE-2017-3225 // CERT/CC: VU#166743 // JVNDB: JVNDB-2017-010588 // BID: 100675

AFFECTED PRODUCTS

vendor:	denx	model:	u-boot	scope:	lt	version:	2017.09	Trust: 1.0
vendor:	denx engineering	model:	u-boot	scope:	-	version:	-	Trust: 0.8
vendor:	u boot	model:	das u-boot	scope:	eq	version:	0	Trust: 0.3

sources: BID: 100675 // JVNDB: JVNDB-2017-010588 // NVD: CVE-2017-3225

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2017-3225
value:	MEDIUM
Trust: 1.0
IPA:	JVNDB-2017-010588
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-201709-516
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2017-3225
severity:	LOW
baseScore:	2.1
vectorString:	AV:L/AC:L/AU:N/C:P/I:N/A:N
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
IPA:	JVNDB-2017-010588
severity:	MEDIUM
baseScore:	5.6
vectorString:	AV:L/AC:H/AU:N/C:C/I:C/A:N
accessVector:	LOCAL
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8

nvd@nist.gov:	CVE-2017-3225
baseSeverity:	MEDIUM
baseScore:	4.6
vectorString:	CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector:	PHYSICAL
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	0.9
impactScore:	3.6
version:	3.0
Trust: 1.0
IPA:	JVNDB-2017-010588
baseSeverity:	MEDIUM
baseScore:	5.7
vectorString:	CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector:	PHYSICAL
attackComplexity:	HIGH
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2017-010588 // CNNVD: CNNVD-201709-516 // NVD: CVE-2017-3225

PROBLEMTYPE DATA

problemtype:	CWE-329	Trust: 1.8
problemtype:	CWE-310	Trust: 1.0
problemtype:	CWE-208	Trust: 0.8

sources: JVNDB: JVNDB-2017-010588 // NVD: CVE-2017-3225

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-201709-516

TYPE

encryption problem

Trust: 0.6

sources: CNNVD: CNNVD-201709-516

CONFIGURATIONS

sources: JVNDB: JVNDB-2017-010588

PATCH

title:

env: Migrate CONFIG_ENV_AES to Kconfig and deprecate

url:

http://git.denx.de/?p=u-boot.git;a=commit;h=5eb35220b2cbeac79af8d73c696f5930a755c5bd

Trust: 0.8

sources: JVNDB: JVNDB-2017-010588

EXTERNAL IDS

db:	CERT/CC	id:	VU#166743	Trust: 3.5
db:	NVD	id:	CVE-2017-3225	Trust: 2.7
db:	BID	id:	100675	Trust: 1.9
db:	JVN	id:	JVNVU96769287	Trust: 0.8
db:	JVNDB	id:	JVNDB-2017-010588	Trust: 0.8
db:	CNNVD	id:	CNNVD-201709-516	Trust: 0.6

sources: CERT/CC: VU#166743 // BID: 100675 // JVNDB: JVNDB-2017-010588 // CNNVD: CNNVD-201709-516 // NVD: CVE-2017-3225

REFERENCES

url:	https://www.kb.cert.org/vuls/id/166743	Trust: 2.7
url:	http://www.securityfocus.com/bid/100675	Trust: 1.6
url:	https://cwe.mitre.org/data/definitions/208.html	Trust: 0.8
url:	http://cwe.mitre.org/data/definitions/329.html	Trust: 0.8
url:	http://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2017-444.htm	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-3225	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-3226	Trust: 0.8
url:	http://jvn.jp/vu/jvnvu96769287/index.html	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2017-3225	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2017-3226	Trust: 0.8
url:	https://www.denx.de/wiki/u-boot/webhome	Trust: 0.3

sources: CERT/CC: VU#166743 // BID: 100675 // JVNDB: JVNDB-2017-010588 // CNNVD: CNNVD-201709-516 // NVD: CVE-2017-3225

CREDITS

Allan Xavier

Trust: 0.9

sources: BID: 100675 // CNNVD: CNNVD-201709-516

SOURCES

db:	CERT/CC	id:	VU#166743
db:	BID	id:	100675
db:	JVNDB	id:	JVNDB-2017-010588
db:	CNNVD	id:	CNNVD-201709-516
db:	NVD	id:	CVE-2017-3225

LAST UPDATE DATE

2024-11-23T22:26:17.384000+00:00

SOURCES UPDATE DATE

db:	CERT/CC	id:	VU#166743	date:	2017-10-12T00:00:00
db:	BID	id:	100675	date:	2017-09-08T00:00:00
db:	JVNDB	id:	JVNDB-2017-010588	date:	2019-07-24T00:00:00
db:	CNNVD	id:	CNNVD-201709-516	date:	2019-10-17T00:00:00
db:	NVD	id:	CVE-2017-3225	date:	2024-11-21T03:25:04.470

SOURCES RELEASE DATE

db:	CERT/CC	id:	VU#166743	date:	2017-09-08T00:00:00
db:	BID	id:	100675	date:	2017-09-08T00:00:00
db:	JVNDB	id:	JVNDB-2017-010588	date:	2017-12-20T00:00:00
db:	CNNVD	id:	CNNVD-201709-516	date:	2017-09-18T00:00:00
db:	NVD	id:	CVE-2017-3225	date:	2018-07-24T15:29:00.953