ID

VAR-201711-0420


CVE

CVE-2017-13872


TITLE

Apple MacOS High Sierra disabled account authentication bypass

Trust: 0.8

sources: CERT/CC: VU#113765

DESCRIPTION

An issue was discovered in certain Apple products. macOS High Sierra before Security Update 2017-001 is affected. The issue involves the "Directory Utility" component. It allows attackers to obtain administrator access without a password via certain interactions involving entry of the root user name. Apple macOS High Sierra Is "root" There are authentication bypass issues for accounts and other disabled accounts. Authenticated users can obtain root privileges. User name by default "root" Exists in a disabled account. macOS If you perform an operation that requires administrator privileges, you will be asked to enter credentials for an account with administrator privileges. "root" And an empty password, 1 It looks like login failed on the second input, "root" Your account will be activated and you will be able to log in without a password. Then 2 If you enter the same authentication information the second time "root" You can use the account. A locally logged-in user or SSH Once this operation is performed by the logged-in user, "root" Note that account authentication is enabled. Note that even if you intend only to confirm this vulnerability, the account will become valid if you perform any operation.A user who logs in to the system without a password "root" May get permission. "root" If your account is activated, OS Provided by "Screen Sharing" And "Remote Management" It may be used for authentication of remote management functions such as. Apple macOS is prone to an authentication-bypass vulnerability. An attacker can exploit this issue to bypass authentication mechanism and perform unauthorized actions. This may lead to further attacks. Apple macOS version 10.13.1 is vulnerable. CVE-2017-13872 Entry updated November 29, 2017 To confirm that your Mac has Security Update 2017-001: 1. Open the Terminal app, which is in the Utilities folder of your Applications folder. 2. Type "what /usr/libexec/opendirectoryd" and press Return. 3. CVE-2017-9798 curl Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: Malicious FTP servers may be able to cause the client to read out-of-bounds memory Description: An out-of-bounds read issue existed in the FTP PWD response parsing. This issue was addressed with improved bounds checking. This was addressed with improved credential validation. CVE-2017-13872 Intel Graphics Driver Available for: macOS High Sierra 10.13.1 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13883: an anonymous researcher Intel Graphics Driver Available for: macOS High Sierra 10.13.1 Impact: A local user may be able to cause unexpected system termination or read kernel memory Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed through improved input validation. CVE-2017-13878: Ian Beer of Google Project Zero Intel Graphics Driver Available for: macOS High Sierra 10.13.1 Impact: An application may be able to execute arbitrary code with system privileges Description: An out-of-bounds read was addressed through improved bounds checking. CVE-2017-13875: Ian Beer of Google Project Zero IOAcceleratorFamily Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13844: found by IMF developed by HyungSeok Han (daramg.gift) of SoftSec, KAIST (softsec.kaist.ac.kr) IOKit Available for: macOS High Sierra 10.13.1 Impact: An application may be able to execute arbitrary code with system privileges Description: An input validation issue existed in the kernel. This issue was addressed through improved input validation. CVE-2017-13848: Alex Plaskett of MWR InfoSecurity CVE-2017-13858: an anonymous researcher IOKit Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to execute arbitrary code with system privileges Description: Multiple memory corruption issues were addressed through improved state management. CVE-2017-13847: Ian Beer of Google Project Zero Kernel Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13862: Apple Kernel Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2017-13833: Brandon Azad Kernel Available for: macOS High Sierra 10.13.1 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13876: Ian Beer of Google Project Zero Kernel Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to read restricted memory Description: A type confusion issue was addressed with improved memory handling. CVE-2017-13855: Jann Horn of Google Project Zero Kernel Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13867: Ian Beer of Google Project Zero Kernel Available for: macOS High Sierra 10.13.1 Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2017-13865: Ian Beer of Google Project Zero Kernel Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2017-13868: Brandon Azad CVE-2017-13869: Jann Horn of Google Project Zero Mail Available for: macOS High Sierra 10.13.1 Impact: A S/MIME encrypted email may be inadvertently sent unencrypted if the receiver's S/MIME certificate is not installed Description: An inconsistent user interface issue was addressed with improved state management. CVE-2017-13871: an anonymous researcher Mail Drafts Available for: macOS High Sierra 10.13.1 Impact: An attacker with a privileged network position may be able to intercept mail Description: An encryption issue existed with S/MIME credetials. The issue was addressed with additional checks and user control. CVE-2017-13860: Michael Weishaar of INNEO Solutions GmbH OpenSSL Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6, OS X El Capitan 10.11.6 Impact: An application may be able to read restricted memory Description: An out-of-bounds read issue existed in X.509 IPAddressFamily parsing. This issue was addressed with improved bounds checking. CVE-2017-3735: found by OSS-Fuzz Screen Sharing Server Available for: macOS High Sierra 10.13.1, macOS Sierra 10.12.6 Impact: A user with screen sharing access may be able to access any file readable by root Description: A permissions issue existed in the handling of screen sharing sessions. This issue was addressed with improved permissions handling. CVE-2017-13826: Trevor Jacques of Toronto Installation note: macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan may be obtained from the Mac App Store or Apple's Software Downloads web site: https://support.apple.com/downloads/ Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQJdBAEBCgBHFiEEcuX4rtoRe4X62yWlg6PvjDRstEYFAlooN9kpHHByb2R1Y3Qt c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQg6PvjDRstEbvlg/7 Bub6HL7Bv+9taMMz+3Rl2exjVIBv3fUflhpLh1524wFe6UjUyy4Z3X0t/LKogGwb GkHmcvDTK+85yLJeF0XQLHzzeITPrAiQ06FSnpzq6GjDEgczgbyJtw6aT4iagDgK NYfWnmU1XDjpx35kjEyyZblIxDHsvMJRelMdjx4w6In3Pgi+DG+ndYbK5hoaImOX Ywaoc2xzGUXpnJU6Y5tkIbVBF4P4tZQcJJt6cfhTOcR9+ut87HQqc9mo1UGMUqAv z0kYZ4MtGRM4uDiVynkKxwj+NNtSVxwvf1mN2Jb7ApFt0lAfmS8L8xzI15NlbJxJ oSuIvVi3pAhOkO7etaC/CLOxw+wRGaRbaf1i4VmaLI6HW2H2/vWiL1KDhHFIIfVq xBGday+yWkaS9o8B85QZy2GHxEFYxzMvArtzK3tBj2kZCuEcJis60CanwZOSbcsp 4IlEKVGabMNwGwOVX22UwrLCtMzsqSVZpYyKy/m7n6DXnpspuWTohDmc68zq/4nj 5LgGTFz8IUaT1ujQZq9g4siVeXzu0bsAgttauRlrWilUsDtpsv5s+dkGlXPFxbDf BuvNgqGSg/xz0QRGmJ7UA3g3L7fTvWhOzXnBOh7c45OpYT54tqGIEi6Bk72NyPz+ ioQ7LBPJE6RCSy5XZJ6x8YwSYp+kO8BBPaYsxSoxXCs= =2VBd -----END PGP SIGNATURE-----

Trust: 3.06

sources: NVD: CVE-2017-13872 // CERT/CC: VU#113765 // JVNDB: JVNDB-2017-010042 // BID: 101981 // VULHUB: VHN-104538 // VULMON: CVE-2017-13872 // PACKETSTORM: 145179 // PACKETSTORM: 145270 // PACKETSTORM: 145178

AFFECTED PRODUCTS

vendor:applemodel:mac os xscope:eqversion:10.13.1

Trust: 2.4

vendor:applemodel:mac os xscope:eqversion:10.13.0

Trust: 1.6

vendor:applemodel: - scope: - version: -

Trust: 0.8

vendor:applemodel:macosscope:eqversion:10.13.1

Trust: 0.3

sources: CERT/CC: VU#113765 // BID: 101981 // JVNDB: JVNDB-2017-010042 // CNNVD: CNNVD-201711-1133 // NVD: CVE-2017-13872

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2017-13872
value: HIGH

Trust: 1.0

NVD: CVE-2017-13872
value: HIGH

Trust: 0.8

IPA: JVNDB-2017-010042
value: HIGH

Trust: 0.8

CNNVD: CNNVD-201711-1133
value: CRITICAL

Trust: 0.6

VULHUB: VHN-104538
value: HIGH

Trust: 0.1

VULMON: CVE-2017-13872
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2017-13872
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

NVD: CVE-2017-13872
severity: HIGH
baseScore: 7.2
vectorString: NONE
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2017-010042
severity: MEDIUM
baseScore: 6.8
vectorString: AV:L/AC:L/AU:S/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

VULHUB: VHN-104538
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2017-13872
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: 1.0

IPA: JVNDB-2017-010042
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CERT/CC: VU#113765 // VULHUB: VHN-104538 // VULMON: CVE-2017-13872 // JVNDB: JVNDB-2017-010042 // CNNVD: CNNVD-201711-1133 // NVD: CVE-2017-13872

PROBLEMTYPE DATA

problemtype:CWE-287

Trust: 1.1

sources: VULHUB: VHN-104538 // NVD: CVE-2017-13872

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201711-1133

TYPE

authorization issue

Trust: 0.6

sources: CNNVD: CNNVD-201711-1133

CONFIGURATIONS

sources: JVNDB: JVNDB-2017-010042

EXPLOIT AVAILABILITY

sources: CERT/CC: VU#113765 // VULHUB: VHN-104538 // VULMON: CVE-2017-13872

PATCH

title:HT208315url:https://support.apple.com/en-us/HT208315

Trust: 0.8

title:Mac でルートユーザを有効にする方法やルートパスワードを変更する方法url:https://support.apple.com/ja-jp/HT204012

Trust: 0.8

title:HT208315url:https://support.apple.com/ja-jp/HT208315

Trust: 0.8

title:Apple macOS High Sierra Directory Utility Fixes for component security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=76792

Trust: 0.6

title:WHID Injector Toolkiturl:https://github.com/swisskyrepo/WHID_Toolkit

Trust: 0.1

title:WHID Injector Toolkiturl:https://github.com/Ra7mo0on/WHID_Toolkit

Trust: 0.1

title:High Sierra root vulnerability validatorurl:https://github.com/axelvf/tools-highsierraroot

Trust: 0.1

title:CVE-2017-13872-Patchurl:https://github.com/hageok/CVE-2017-13872-Patch

Trust: 0.1

title:macos-kernel-exploitsurl:https://github.com/ozkanbilge/MacOSX-Kernel-Exploits

Trust: 0.1

title:macos-kernel-exploitsurl:https://github.com/SecWiki/macos-kernel-exploits

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title:rootOSurl:https://github.com/TH3-HUNT3R/Root-MacOS

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title:rootOSurl:https://github.com/ruxzy1/rootOS

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title:rootOSurl:https://github.com/thehappydinoa/rootOS

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title:Threatposturl:https://threatpost.com/apple-announces-emergency-patch-to-fix-high-sierra-login-bug/129039/

Trust: 0.1

sources: VULMON: CVE-2017-13872 // JVNDB: JVNDB-2017-010042 // CNNVD: CNNVD-201711-1133

EXTERNAL IDS

db:NVDid:CVE-2017-13872

Trust: 3.2

db:CERT/CCid:VU#113765

Trust: 2.0

db:BIDid:101981

Trust: 1.5

db:EXPLOIT-DBid:43248

Trust: 1.2

db:EXPLOIT-DBid:43201

Trust: 1.2

db:SECTRACKid:1039875

Trust: 1.2

db:JVNDBid:JVNDB-2017-010042

Trust: 0.8

db:CNNVDid:CNNVD-201711-1133

Trust: 0.7

db:PACKETSTORMid:145179

Trust: 0.2

db:PACKETSTORMid:145178

Trust: 0.2

db:SEEBUGid:SSVID-96911

Trust: 0.1

db:VULHUBid:VHN-104538

Trust: 0.1

db:VULMONid:CVE-2017-13872

Trust: 0.1

db:PACKETSTORMid:145270

Trust: 0.1

sources: CERT/CC: VU#113765 // VULHUB: VHN-104538 // VULMON: CVE-2017-13872 // BID: 101981 // JVNDB: JVNDB-2017-010042 // PACKETSTORM: 145179 // PACKETSTORM: 145270 // PACKETSTORM: 145178 // CNNVD: CNNVD-201711-1133 // NVD: CVE-2017-13872

REFERENCES

url:https://objective-see.com/blog/blog_0x24.html

Trust: 2.8

url:https://arstechnica.com/information-technology/2017/11/macos-bug-lets-you-log-in-as-admin-with-no-password-required/

Trust: 1.8

url:https://support.apple.com/ht208315

Trust: 1.8

url:https://www.exploit-db.com/exploits/43201/

Trust: 1.3

url:http://www.securityfocus.com/bid/101981

Trust: 1.2

url:https://support.apple.com/ht208331

Trust: 1.2

url:https://www.exploit-db.com/exploits/43248/

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url:https://github.com/rapid7/metasploit-framework/pull/9302

Trust: 1.2

url:https://www.wired.com/story/macos-update-undoes-apple-root-bug-patch/

Trust: 1.2

url:http://www.securitytracker.com/id/1039875

Trust: 1.2

url:https://www.kb.cert.org/vuls/id/113765

Trust: 1.2

url:https://support.apple.com/en-us/ht208315

Trust: 1.1

url:https://nvd.nist.gov/vuln/detail/cve-2017-13872

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url:https://forums.developer.apple.com/thread/79235#277225

Trust: 0.8

url:https://support.apple.com/en-us/ht204012

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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-13872

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url:https://www.jpcert.or.jp/at/2017/at170045.html

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url:http://jvn.jp/cert/jvnvu113765

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url:https://www.apple.com/

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url:https://support.apple.com/en-in/ht208315

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url:https://support.apple.com/kb/ht201222

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url:https://www.apple.com/support/security/pgp/

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url:https://support.apple.com/ht204012

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url:https://cwe.mitre.org/data/definitions/287.html

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url:https://github.com/swisskyrepo/whid_toolkit

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url:https://nvd.nist.gov

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url:https://nvd.nist.gov/vuln/detail/cve-2017-3735

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13860

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13869

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13875

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2017-13878

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url:https://support.apple.com/downloads/

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13867

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13855

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13858

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13868

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13826

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url:https://nvd.nist.gov/vuln/detail/cve-2017-9798

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13844

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13848

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13865

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13833

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url:https://nvd.nist.gov/vuln/detail/cve-2017-1000254

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13847

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13862

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13883

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url:https://nvd.nist.gov/vuln/detail/cve-2017-13871

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2017-13876

Trust: 0.1

url:https://support.apple.com/ht201260.

Trust: 0.1

sources: CERT/CC: VU#113765 // VULHUB: VHN-104538 // VULMON: CVE-2017-13872 // BID: 101981 // JVNDB: JVNDB-2017-010042 // PACKETSTORM: 145179 // PACKETSTORM: 145270 // PACKETSTORM: 145178 // CNNVD: CNNVD-201711-1133 // NVD: CVE-2017-13872

CREDITS

chethan177

Trust: 0.3

sources: BID: 101981

SOURCES

db:CERT/CCid:VU#113765
db:VULHUBid:VHN-104538
db:VULMONid:CVE-2017-13872
db:BIDid:101981
db:JVNDBid:JVNDB-2017-010042
db:PACKETSTORMid:145179
db:PACKETSTORMid:145270
db:PACKETSTORMid:145178
db:CNNVDid:CNNVD-201711-1133
db:NVDid:CVE-2017-13872

LAST UPDATE DATE

2024-11-23T20:36:22.993000+00:00


SOURCES UPDATE DATE

db:CERT/CCid:VU#113765date:2017-11-30T00:00:00
db:VULHUBid:VHN-104538date:2017-12-30T00:00:00
db:VULMONid:CVE-2017-13872date:2017-12-30T00:00:00
db:BIDid:101981date:2017-12-19T22:37:00
db:JVNDBid:JVNDB-2017-010042date:2018-03-14T00:00:00
db:CNNVDid:CNNVD-201711-1133date:2017-11-30T00:00:00
db:NVDid:CVE-2017-13872date:2024-11-21T03:11:50.080

SOURCES RELEASE DATE

db:CERT/CCid:VU#113765date:2017-11-29T00:00:00
db:VULHUBid:VHN-104538date:2017-11-29T00:00:00
db:VULMONid:CVE-2017-13872date:2017-11-29T00:00:00
db:BIDid:101981date:2017-11-29T00:00:00
db:JVNDBid:JVNDB-2017-010042date:2017-12-01T00:00:00
db:PACKETSTORMid:145179date:2017-12-01T13:33:33
db:PACKETSTORMid:145270date:2017-12-08T10:11:11
db:PACKETSTORMid:145178date:2017-12-01T10:11:11
db:CNNVDid:CNNVD-201711-1133date:2017-11-30T00:00:00
db:NVDid:CVE-2017-13872date:2017-11-29T17:29:00.217