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MitreCVE-2018-10403

HistoryJun 13, 2018 - 10:29 p.m.

CVE-2018-10403

2018-06-1322:29:00

CWE-295

mitre

web.nvd.nist.gov

f-secure

xfence

little flocker

vulnerability

cve-2018-10403

code signing

evasion

apple

third-party

universal/fat binary

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

38.9%

JSON

An issue was discovered in F-Secure XFENCE and Little Flocker. A maliciously crafted Universal/fat binary can evade third-party code signing checks. By not completing full inspection of the Universal/fat binary, the user of the third-party tool will believe that the code is signed by Apple, but the malicious unsigned code will execute.

Affected configurations

Nvd

Node

f-securexfenceMatch-

VendorProductVersionCPE
f-securexfence-cpe:2.3:a:f-secure:xfence:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
f-secure	xfence	-	cpe:2.3:a:f-secure:xfence:-:::::::*

References

www.okta.com/security-blog/2018/06/issues-around-third-party-apple-code-signing-checks/

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

38.9%

JSON

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