PT-2017-1770 · Apple · Ios+1

Published 2017-04-02 · Updated 2019-10-03 · CVE-2017-2423

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions iOS versions prior to 10.3 macOS versions prior to 10.12.4

Description The issue involves the "Security" component and allows remote attackers to bypass intended access restrictions. This is achieved by leveraging a successful result from a SecKeyRawVerify API call with an empty signature. The vulnerability is related to insufficient access restrictions in the Security component of the operating system.

Recommendations For iOS versions prior to 10.3, update to version 10.3 or later to resolve the issue. For macOS versions prior to 10.12.4, update to version 10.12.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the SecKeyRawVerify API call to minimize the risk of exploitation.

Fix

Improper Access Control

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-284

CWE-347

Related Identifiers

BDU:2017-00926

CVE-2017-2423

Affected Products

Ios

Apple Macos

References · 7

• https://support.apple.com/HT207615 · Vendor Advisory
• https://support.apple.com/HT207617 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-00926 · Security Note
• https://osv.dev/vulnerability/CVE-2017-2423 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-2423 · Security Note
• http://securityfocus.com/bid/97147 · Note
• http://securitytracker.com/id/1038138 · Note